Abstract

Polyvinyl alcohol (PVA) was utilized as a matrix to host two-dimensional (2D) liquid-phase-exfoliated MoSe2 nanosheets. These 2D MoSe2/PVA composite thin films were experimentally proven to be preferable for efficient nonlinear optical devices. Our nonlinear optical study shows that these composite thin films possess strong saturable absorption (SA) over a wide wavelength range from 400 nm to 800 nm under the irradiation of femtosecond and nanosecond lasers. The SA property of our films was measured for various laser pulse durations, wavelength and linear absorption. Moreover, employing pump-probe, exciton-exciton annihilation was experimentally observed and studied at 800 nm. Our research gives clear insight into the photophysical properties of MoSe2/PVA thin films and shows the material’s potential as a photonic device.

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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    [Crossref]
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  9. J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
    [Crossref]
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    [Crossref]
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    [Crossref]
  15. G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
    [Crossref]
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    [Crossref]
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    [Crossref] [PubMed]
  19. N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
    [Crossref]
  20. F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
    [Crossref]
  21. M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
    [Crossref] [PubMed]
  22. Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
    [Crossref] [PubMed]
  23. J. S. Manser and P. V. Kamat, “Band filling with free charge carriers in organometal halide perovskites,” Nat. Photonics 8(9), 737–743 (2014).
    [Crossref]
  24. M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
    [Crossref]
  25. D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
    [Crossref] [PubMed]
  26. I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
    [Crossref] [PubMed]

2018 (2)

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
[Crossref]

2017 (7)

K. Wu, C. Guo, H. Wang, X. Zhang, J. Wang, and J. Chen, “All-optical phase shifter and switch near 1550nm using tungsten disulfide (WS2) deposited tapered fiber,” Opt. Express 25(15), 17639–17649 (2017).
[Crossref] [PubMed]

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

2016 (3)

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

J. Koo, J. Park, J. Lee, Y. M. Jhon, and J. H. Lee, “Femtosecond harmonic mode-locking of a fiber laser at 3.27 GHz using a bulk-like, MoSe2-based saturable absorber,” Opt. Express 24(10), 10575–10589 (2016).
[Crossref] [PubMed]

2015 (3)

2014 (5)

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

J. S. Manser and P. V. Kamat, “Band filling with free charge carriers in organometal halide perovskites,” Nat. Photonics 8(9), 737–743 (2014).
[Crossref]

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

2013 (3)

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

P. Tonndorf, R. Schmidt, P. Böttger, X. Zhang, J. Börner, A. Liebig, M. Albrecht, C. Kloc, O. Gordan, D. R. Zahn, S. Michaelis de Vasconcellos, and R. Bratschitsch, “Photoluminescence emission and Raman response of monolayer MoS₂, MoSe₂, and WSe₂,” Opt. Express 21(4), 4908–4916 (2013).
[Crossref] [PubMed]

2009 (1)

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

2006 (1)

I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
[Crossref] [PubMed]

1993 (1)

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Ajayan, P. M.

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

Albrecht, M.

Almeida, R.

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

Baker-Murray, A. A.

G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
[Crossref]

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

Bansil, A.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Bennett, D.

Blau, W.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Blau, W. J.

Blighe, F. M.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Börner, J.

Böttger, P.

Bratschitsch, R.

Brézin, L.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Bunker, B. A.

I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
[Crossref] [PubMed]

Cahangirov, S.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

Cai, Z.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Ceballos, F.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

Cerullo, G.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Chang, C.

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

Chang, T.-R.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Chen, B.

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Chen, G.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Chen, J.

Chen, N.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Chen, Y.

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Cheng, H.

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

Cheng, Y.

Coleman, J. N.

G. Wang, S. Zhang, X. Zhang, L. Zhang, Y. Cheng, D. Fox, H. Zhang, J. N. Coleman, W. J. Blau, and J. Wang, “Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions,” Photon. Res. 3(2), A51–A55 (2015).
[Crossref]

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Cudazzo, P.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

Cui, Q.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

Cui, X.

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Cui, Y.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Cui, Y.-T.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Dal Conte, S.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

De, S.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Dong, N.

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

Duesberg, G. S.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Ekimov, A.

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Fan, J.

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Fan, P.

Feng, Y.

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

Flytzanis, C.

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Fox, D.

Gao, F.

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

Ghanassi, M.

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Ghimire, N. J.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Gong, Y.

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

Gordan, O.

Guo, C.

Hache, F.

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Han, M.

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

Harutyunyan, A. R.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

He, D.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

He, L.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

He, N.

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

Heinz, T. F.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Hernandez, Y.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Horzum, S.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

Huang, J.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Hussain, Z.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Jeng, H. T.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Jhon, Y. M.

Kamat, P. V.

J. S. Manser and P. V. Kamat, “Band filling with free charge carriers in organometal halide perovskites,” Nat. Photonics 8(9), 737–743 (2014).
[Crossref]

I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
[Crossref] [PubMed]

Karlsson, L. S.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Kelleher, E.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Kim, D. H.

D. H. Kim and D. Lim, “Optical second-harmonic generation in few-layer MoSe2,” J. Korean Phys. Soc. 66(5), 816–820 (2015).
[Crossref]

King, P. J.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Kloc, C.

Koo, J.

Kumar, N.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

Kuno, M.

I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
[Crossref] [PubMed]

Lan, J.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Lee, J.

J. Koo, J. Park, J. Lee, Y. M. Jhon, and J. H. Lee, “Femtosecond harmonic mode-locking of a fiber laser at 3.27 GHz using a bulk-like, MoSe2-based saturable absorber,” Opt. Express 24(10), 10575–10589 (2016).
[Crossref] [PubMed]

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Lee, J. H.

Li, H.

F. Gao, Y. Gong, M. Titze, R. Almeida, P. M. Ajayan, and H. Li, “Valley trion dynamics in monolayer MoSe2,” Phys. Rev. B 94(24), 245413 (2016).
[Crossref]

Li, X.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Li, Y.

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

Liang, G.

Liebig, A.

Lim, D.

D. H. Kim and D. Lim, “Optical second-harmonic generation in few-layer MoSe2,” J. Korean Phys. Soc. 66(5), 816–820 (2015).
[Crossref]

Lin, H.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Liu, B.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Liu, K.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Liu, W.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Liu, Z.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Lotya, M.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Luo, J.-T.

Mandrus, D. G.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Manser, J. S.

J. S. Manser and P. V. Kamat, “Band filling with free charge carriers in organometal halide perovskites,” Nat. Photonics 8(9), 737–743 (2014).
[Crossref]

McGovern, I. T.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Meng, Y.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Michaelis de Vasconcellos, S.

Miranda, P. B.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Mo, S. K.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Moncorge, R.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Moody, G.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Moore, R.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Nicolosi, V.

M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Nie, Z.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Park, J.

Peeters, F. M.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

Pogna, E. A.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

Qi, S.

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Rao, Y.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Reider, G. A.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Ricard, D.

M. Ghanassi, M. Schanne‐Klein, F. Hache, A. Ekimov, D. Ricard, and C. Flytzanis, “Time-resolved measurements of carrier recombination in experimental semiconductor‐doped glasses: Confirmation of the role of Auger recombination,” Appl. Phys. Lett. 62(1), 78–80 (1993).
[Crossref]

Robel, I.

I. Robel, B. A. Bunker, P. V. Kamat, and M. Kuno, “Exciton recombination dynamics in CdSe nanowires: bimolecular to three-carrier Auger kinetics,” Nano Lett. 6(7), 1344–1349 (2006).
[Crossref] [PubMed]

Ruan, X.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Rubio, A.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
[Crossref]

Sahin, H.

S. Horzum, H. Sahin, S. Cahangirov, P. Cudazzo, A. Rubio, T. Serin, and F. M. Peeters, “Phonon softening and direct to indirect band gap crossover in strained single-layer MoSe2,” Phys. Rev. B Condens. Matter Mater. Phys. 87(12), 125415 (2013).
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Wang, H.

K. Wu, C. Guo, H. Wang, X. Zhang, J. Wang, and J. Chen, “All-optical phase shifter and switch near 1550nm using tungsten disulfide (WS2) deposited tapered fiber,” Opt. Express 25(15), 17639–17649 (2017).
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X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
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[Crossref]

K. Wu, C. Guo, H. Wang, X. Zhang, J. Wang, and J. Chen, “All-optical phase shifter and switch near 1550nm using tungsten disulfide (WS2) deposited tapered fiber,” Opt. Express 25(15), 17639–17649 (2017).
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G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

M. Shi, N. Dong, N. He, Y. Wan, H. Cheng, M. Han, J. Wang, and Y. Chen, “MoS2 nanosheets covalently functionalized with polyacrylonitrile: synthesis and broadband laser protection performance,” J. Mater. Chem. C Mater. Opt. Electron. Devices 5(45), 11920–11926 (2017).
[Crossref]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

G. Wang, S. Zhang, X. Zhang, L. Zhang, Y. Cheng, D. Fox, H. Zhang, J. N. Coleman, W. J. Blau, and J. Wang, “Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions,” Photon. Res. 3(2), A51–A55 (2015).
[Crossref]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
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G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
[Crossref]

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

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G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
[Crossref]

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

Wang, X.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Wang, Y.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

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M. Lotya, Y. Hernandez, P. J. King, R. J. Smith, V. Nicolosi, L. S. Karlsson, F. M. Blighe, S. De, Z. Wang, I. T. McGovern, G. S. Duesberg, and J. N. Coleman, “Liquid phase production of graphene by exfoliation of graphite in surfactant/water solutions,” J. Am. Chem. Soc. 131(10), 3611–3620 (2009).
[Crossref] [PubMed]

Wu, J.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Wu, K.

K. Wu, C. Guo, H. Wang, X. Zhang, J. Wang, and J. Chen, “All-optical phase shifter and switch near 1550nm using tungsten disulfide (WS2) deposited tapered fiber,” Opt. Express 25(15), 17639–17649 (2017).
[Crossref] [PubMed]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Wu, S.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Wu, Y.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Xie, Y.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

Xu, B.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Xu, H.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

Xu, X.

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

Xu, Y.

Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
[Crossref]

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Yan, H.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Yan, J.

A. Singh, G. Moody, S. Wu, Y. Wu, N. J. Ghimire, J. Yan, D. G. Mandrus, X. Xu, and X. Li, “Coherent electronic coupling in atomically thin MoSe2,” Phys. Rev. Lett. 112(21), 216804 (2014).
[Crossref]

You, Y.

D. Sun, Y. Rao, G. A. Reider, G. Chen, Y. You, L. Brézin, A. R. Harutyunyan, and T. F. Heinz, “Observation of rapid exciton-exciton annihilation in monolayer molybdenum disulfide,” Nano Lett. 14(10), 5625–5629 (2014).
[Crossref] [PubMed]

Zahn, D. R.

Zhan, J.

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

Zhang, H.

Zhang, L.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

G. Wang, S. Zhang, X. Zhang, L. Zhang, Y. Cheng, D. Fox, H. Zhang, J. N. Coleman, W. J. Blau, and J. Wang, “Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions,” Photon. Res. 3(2), A51–A55 (2015).
[Crossref]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
[Crossref] [PubMed]

Zhang, R.

B. Liu, Y. Meng, X. Ruan, F. Wang, W. Liu, F. Song, X. Wang, J. Wu, L. He, R. Zhang, and Y. Xu, “Coupled relaxation channels of excitons in monolayer MoSe2,” Nanoscale 9(46), 18546–18551 (2017).
[Crossref] [PubMed]

Zhang, S.

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

Y. Feng, N. Dong, G. Wang, Y. Li, S. Zhang, K. Wang, L. Zhang, W. J. Blau, and J. Wang, “Saturable absorption behavior of free-standing graphene polymer composite films over broad wavelength and time ranges,” Opt. Express 23(1), 559–569 (2015).
[Crossref] [PubMed]

G. Wang, S. Zhang, X. Zhang, L. Zhang, Y. Cheng, D. Fox, H. Zhang, J. N. Coleman, W. J. Blau, and J. Wang, “Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions,” Photon. Res. 3(2), A51–A55 (2015).
[Crossref]

Zhang, X.

G. Wang, G. Liang, A. A. Baker-Murray, K. Wang, J. J. Wang, X. Zhang, D. Bennett, J.-T. Luo, J. Wang, P. Fan, and W. J. Blau, “Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber,” Photon. Res. 6(7), 674–680 (2018).
[Crossref]

K. Wu, C. Guo, H. Wang, X. Zhang, J. Wang, and J. Chen, “All-optical phase shifter and switch near 1550nm using tungsten disulfide (WS2) deposited tapered fiber,” Opt. Express 25(15), 17639–17649 (2017).
[Crossref] [PubMed]

X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
[Crossref] [PubMed]

J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
[Crossref]

N. Dong, Y. Li, S. Zhang, X. Zhang, and J. Wang, “Optically Induced Transparency and Extinction in Dispersed MoS2, MoSe2, and Graphene Nanosheets,” Adv. Opt. Mater. 5(19), 1700543 (2017).
[Crossref]

G. Wang, K. Wang, B. M. Szydłowska, A. A. Baker‐Murray, J. J. Wang, Y. Feng, X. Zhang, J. Wang, and W. J. Blau, “Ultrafast Nonlinear Optical Properties of a Graphene Saturable Mirror in the 2 μm Wavelength Region,” Laser Photonics Rev. 11(5), 1700166 (2017).
[Crossref]

X. Zhang, S. Zhang, B. Chen, H. Wang, K. Wu, Y. Chen, J. Fan, S. Qi, X. Cui, L. Zhang, and J. Wang, “Direct synthesis of large-scale hierarchical MoS2 films nanostructured with orthogonally oriented vertically and horizontally aligned layers,” Nanoscale 8(1), 431–439 (2016).
[Crossref] [PubMed]

G. Wang, S. Zhang, X. Zhang, L. Zhang, Y. Cheng, D. Fox, H. Zhang, J. N. Coleman, W. J. Blau, and J. Wang, “Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions,” Photon. Res. 3(2), A51–A55 (2015).
[Crossref]

P. Tonndorf, R. Schmidt, P. Böttger, X. Zhang, J. Börner, A. Liebig, M. Albrecht, C. Kloc, O. Gordan, D. R. Zahn, S. Michaelis de Vasconcellos, and R. Bratschitsch, “Photoluminescence emission and Raman response of monolayer MoS₂, MoSe₂, and WSe₂,” Opt. Express 21(4), 4908–4916 (2013).
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Zhang, Y.

Y. Zhang, T.-R. Chang, B. Zhou, Y.-T. Cui, H. Yan, Z. Liu, F. Schmitt, J. Lee, R. Moore, Y. Chen, H. Lin, H. T. Jeng, S. K. Mo, Z. Hussain, A. Bansil, and Z. X. Shen, “Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2.,” Nat. Nanotechnol. 9(2), 111–115 (2013).
[Crossref] [PubMed]

Zhao, H.

N. Kumar, Q. Cui, F. Ceballos, D. He, Y. Wang, and H. Zhao, “Exciton-exciton annihilation in MoSe2 monolayers,” Phys. Rev. B Condens. Matter Mater. Phys. 89(12), 125427 (2014).
[Crossref]

Zhao, Q.

K. Wang, Y. Feng, C. Chang, J. Zhan, C. Wang, Q. Zhao, J. N. Coleman, L. Zhang, W. J. Blau, and J. Wang, “Broadband ultrafast nonlinear absorption and nonlinear refraction of layered molybdenum dichalcogenide semiconductors,” Nanoscale 6(18), 10530–10535 (2014).
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Zhou, B.

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Z. Nie, C. Trovatello, E. A. Pogna, S. Dal Conte, P. B. Miranda, E. Kelleher, C. Zhu, I. C. E. Turcu, Y. Xu, K. Liu, G. Cerullo, and F. Wang, “Broadband nonlinear optical response of monolayer MoSe2 under ultrafast excitation,” Appl. Phys. Lett. 112(3), 031108 (2018).
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X. Zhang, A. Selkirk, S. Zhang, J. Huang, Y. Li, Y. Xie, N. Dong, Y. Cui, L. Zhang, and W. Blau, “Layered MoS2 and carbon nanotube core-shell structured nanocomposites for enhanced nonlinear optical performances,” Chemistry 23, 3321–3327 (2017).
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J. Lan, X. Zhang, Z. Zhou, B. Xu, H. Xu, Z. Cai, N. Chen, J. Wang, X. Xu, R. Soulard, and R. Moncorge, “Passively Q-Switched Tm: CaYAlO4 Laser Using a MoS2 Saturable Absorber,” IEEE Photonics Technol. Lett. 29(6), 515–518 (2017).
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[Crossref]

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Figures (6)

Fig. 1
Fig. 1 (a) A AFM image consist of a large amount of MoSe2 flakes for (b) thickness statistics in a 4 µm × 4 µm area. (c) The ground state absorption spectra of pure PVA and MoSe2 composite thin films. (d)-(f). The photos of the three composite thin films (α, β and γ).
Fig. 2
Fig. 2 The experimental and fitting results of MoSe2/PVA thin films based on 6ns (10 Hz) and 100 fs (100 kHz) laser pulses at the center wavelength of 532 nm and 550 nm, respectively. The measurements were carried out on three composite thin films (α, β and γ) with different linear transmission using variable energies.
Fig. 3
Fig. 3 The Z-scan results of MoSe2/PVA thin films (α, β and γ) under femtosecond pulses laser radiation at the wavelengths of 400 nm and 800 nm.
Fig. 4
Fig. 4 (a) The Z-scan results of samples α, β, and γ under the irradiation of 6 ns pulses at 532 nm and ~5 nJ. The data for the ~100 fs pulses at the wavelength of (b) 550 nm, (c) 400 nm and (d) 800 nm.
Fig. 5
Fig. 5 (a) The differential transmission of MoSe2/PVA thin films at different pump pulse energy obtained from (b) the degenerate pump-probe technique based on an 800 nm wavelength, ~100 fs and 100 kHz ultrafast laser.
Fig. 6
Fig. 6 (a) Maximum differential transmission as a function of initial photoinduced carrier density. (b) (n0/nt – 1) as a function of the pump-probe delay time at initial photoinduced carrier density, n 0 , of 4.17 × 1017 cm−3. The inset is the corresponding carrier dynamics trace.

Tables (5)

Tables Icon

Table 1 The fitting parameters of Z-scan results and optical nonlinearities of the composite thin films α, β and γ with linear transmission of 59.6%, 42.8% and 19.9% respectively at 532 nm. The pulse duration of the laser is 6 ns and the pulse repetition rate is 10 Hz.

Tables Icon

Table 2 Linear and nonlinear optical parameters of the composite thin films based on a pulse laser with a center wavelength of 550 nm, pulses duration of ~100 fs and 100 kHz repetition rate. The linear transmission of the samples α, β, and γ at 550 nm are 61.9%, 41.0% and 26.9% respectively.

Tables Icon

Table 3 Linear and nonlinear optical parameters of the thin films α, β, and γ obtained from 100 fs pulse laser with a center wavelength of 400 nm and a duration of ~100 fs. The linear absorption of the samples α, β, and γ at 800 nm are 22.9 cm−1, 34.5 cm−1 and 43.7 cm−1, respectively.

Tables Icon

Table 4 Linear and nonlinear optical parameters of the thin films α, β, and γ at a wavelength of 800 nm.

Tables Icon

Table 5 The fitting parameters obtained from the bi-exponential decay equation used to model the pump-probe traces of MoSe2/PVA.

Equations (7)

Equations on this page are rendered with MathJax. Learn more.

Im χ (3) =( 10 7 cλ n 2 96 π 2 ) α NL
FOM=| Im χ (3) α 0 |
ΔT/T = D 1 exp( t τ 1 )erfc( σ 2 τ 1 t 2 σ )+ D 2 exp( t τ 2 )erfc( σ 2 τ 2 t 2 σ )
dn/ dt =An+B n 2 +C n 3
[ ΔT T ] max = ε n 0 γ+ n 0 η
ΔT T ( t )= ε n t ζ+ n t η
n 0 n t 1=v n 0 t