Abstract

Broadband (1.6–18 THz) terahertz time-domain spectroscopy (THz-TDS) and time-resolved terahertz spectroscopy (TRTS) were performed on a 54 μm thick chalcogenide glass (As30Se30Te40) sample with a two-color laser-induced air plasma THz system in transmission and reflection modes, respectively. Two absorption bands at 2–3 and 5–8 THz were observed. TRTS reveals an ultrafast relaxation process of the photoinduced carrier response, well described by a rate equation model with a finite concentration of mid-bandgap trap states for self-trapped excitons. The photoinduced conductivity can be well described by the Drude–Smith conductivity model with a carrier scattering time of 12–17 fs, and we observe significant carrier localization effects. A fast refractive index change was observed 100 fs before the conductivity reached its maximum, with 2 orders of magnitude larger amplitude than expected for the optically induced THz Kerr effect, indicating that free carriers are responsible for the transient index change.

© 2016 Chinese Laser Press

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2016 (1)

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

2015 (1)

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

2014 (1)

T. Wang, P. Klarskov, and P. U. Jepsen, “Ultrabroadband THz time-domain spectroscopy of a free-flowing water film,” IEEE Trans. Terahertz Sci. Technol. 4, 425–431 (2014).

2013 (2)

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

2012 (4)

D. G. Cooke, F. C. Krebs, and P. U. Jepsen, “Direct observation of sub-100 fs mobile charge generation in a polymer-fullerene film,” Phys. Rev. Lett. 108, 056603 (2012).
[Crossref]

D. G. Cooke, A. Meldrum, and P. U. Jepsen, “Ultrabroadband terahertz conductivity of Si nanocrystal films,” Appl. Phys. Lett. 101, 211107 (2012).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

2011 (1)

P. U. Jepsen, D. G. Cooke, and M. Koch, “Terahertz spectroscopy and imaging–modern techniques and applications,” Laser Photon. Rev. 5, 124–166 (2011).

2010 (1)

K. A. Aly, “Optical band gap and refractive index dispersion parameters of AsxSe70Te30-x (0 < x < 30 at.%) amorphous films,” Appl. Phys. A 99, 913–919 (2010).

2009 (2)

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

K. Iwaszczuk, D. G. Cooke, M. Fujiwara, H. Hashimoto, and P. U. Jepsen, “Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy,” Opt. Express 17, 21969–21976 (2009).
[Crossref]

2008 (1)

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

2007 (1)

2006 (4)

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

X. Xie, J. M. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

J. Dai, X. Xie, and X. C. Zhang, “Detection of broadband terahertz waves with a laser-induced plasma in gases,” Phys. Rev. Lett. 97, 103903 (2006).
[Crossref]

2004 (1)

2003 (1)

A. Zakery and S. R. Elliott, “Optical properties and applications of chalcogenide glasses: a review,” J. Non-Cryst. Solids 330, 1–12 (2003).
[Crossref]

2001 (1)

N. V. Smith, “Classical generalization of the Drude formula for the optical conductivity,” Phys. Rev. B 64, 155106 (2001).
[Crossref]

2000 (2)

D. J. Cook and R. M. Hochstrasser, “Intense terahertz pulses by four-wave rectification in air,” Opt. Lett. 25, 1210–1212 (2000).
[Crossref]

J. C. Dyre and T. B. Schroder, “Universality of ac conduction in disordered solids,” Rev. Mod. Phys. 72, 873–892 (2000).
[Crossref]

1999 (1)

K. Petkov and P. J. S. Ewen, “Photoinduced changes in the linear and non-linear optical properties of chalcogenide glasses,” J. Non-Cryst. Solids 249, 150–159 (1999).
[Crossref]

1997 (1)

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

1988 (1)

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

1987 (2)

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

P. Viščor and N. B. Olsen, “Frequency and time response in relaxation time semiconductors,” J. Non-Cryst. Solids 90, 25–28 (1987).
[Crossref]

1978 (1)

R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B 18, 7038–7057 (1978).
[Crossref]

1976 (1)

R. A. Street, “Luminescence in amorphous semiconductors,” Adv. Phys. 25, 397–453 (1976).
[Crossref]

Adam, J.-L.

J.-L. Adam and X. Zhang, Chalcogenide Glasses: Preparation, Properties and Applications (Woodhead, 2013).

Aly, K. A.

K. A. Aly, “Optical band gap and refractive index dispersion parameters of AsxSe70Te30-x (0 < x < 30 at.%) amorphous films,” Appl. Phys. A 99, 913–919 (2010).

Baker, N. J.

Bisgaard, C. Z.

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Bradford, J. N.

R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B 18, 7038–7057 (1978).
[Crossref]

Braunlich, P.

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

Choi, D. Y.

Cook, D. J.

Cooke, D. G.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

D. G. Cooke, F. C. Krebs, and P. U. Jepsen, “Direct observation of sub-100 fs mobile charge generation in a polymer-fullerene film,” Phys. Rev. Lett. 108, 056603 (2012).
[Crossref]

D. G. Cooke, A. Meldrum, and P. U. Jepsen, “Ultrabroadband terahertz conductivity of Si nanocrystal films,” Appl. Phys. Lett. 101, 211107 (2012).
[Crossref]

P. U. Jepsen, D. G. Cooke, and M. Koch, “Terahertz spectroscopy and imaging–modern techniques and applications,” Laser Photon. Rev. 5, 124–166 (2011).

K. Iwaszczuk, D. G. Cooke, M. Fujiwara, H. Hashimoto, and P. U. Jepsen, “Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy,” Opt. Express 17, 21969–21976 (2009).
[Crossref]

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

D’Oliveira, P.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Daguzan, P.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Dai, J.

J. Dai, X. Xie, and X. C. Zhang, “Detection of broadband terahertz waves with a laser-induced plasma in gases,” Phys. Rev. Lett. 97, 103903 (2006).
[Crossref]

Dai, J. M.

X. Xie, J. M. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Denning, E. V.

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

Dyre, J. C.

J. C. Dyre and T. B. Schroder, “Universality of ac conduction in disordered solids,” Rev. Mod. Phys. 72, 873–892 (2000).
[Crossref]

Eden, S.

Eggleton, B. J.

El-Den, M. B.

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

Elliott, S. R.

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

A. Zakery and S. R. Elliott, “Optical properties and applications of chalcogenide glasses: a review,” J. Non-Cryst. Solids 330, 1–12 (2003).
[Crossref]

A. Zakery and S. R. Elliott, Optical Nonlinearities in Chalcogenide Glasses and Their Applications, Vol. 135 of Springer Series in Optical Sciences (Springer, 2007).

Ewen, P. J. S.

K. Petkov and P. J. S. Ewen, “Photoinduced changes in the linear and non-linear optical properties of chalcogenide glasses,” J. Non-Cryst. Solids 249, 150–159 (1999).
[Crossref]

Faust, W. L.

R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B 18, 7038–7057 (1978).
[Crossref]

Finsterbusch, K.

Fischer, A. H.

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

Fu, L.

Fujiwara, M.

Gladden, L. F.

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

Glownia, J. H.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

Guizard, S.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Hashimoto, H.

Hegmann, F. A.

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Hochstrasser, R. M.

Hryciw, A.

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Iwaszczuk, K.

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

K. Iwaszczuk, D. G. Cooke, M. Fujiwara, H. Hashimoto, and P. U. Jepsen, “Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy,” Opt. Express 17, 21969–21976 (2009).
[Crossref]

Jepsen, P. U.

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

T. Wang, P. Klarskov, and P. U. Jepsen, “Ultrabroadband THz time-domain spectroscopy of a free-flowing water film,” IEEE Trans. Terahertz Sci. Technol. 4, 425–431 (2014).

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

D. G. Cooke, A. Meldrum, and P. U. Jepsen, “Ultrabroadband terahertz conductivity of Si nanocrystal films,” Appl. Phys. Lett. 101, 211107 (2012).
[Crossref]

D. G. Cooke, F. C. Krebs, and P. U. Jepsen, “Direct observation of sub-100 fs mobile charge generation in a polymer-fullerene film,” Phys. Rev. Lett. 108, 056603 (2012).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

P. U. Jepsen, D. G. Cooke, and M. Koch, “Terahertz spectroscopy and imaging–modern techniques and applications,” Laser Photon. Rev. 5, 124–166 (2011).

K. Iwaszczuk, D. G. Cooke, M. Fujiwara, H. Hashimoto, and P. U. Jepsen, “Simultaneous reference and differential waveform acquisition in time-resolved terahertz spectroscopy,” Opt. Express 17, 21969–21976 (2009).
[Crossref]

Jones, S. C.

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

Kanatzidis, M. G.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

Kelly, P.

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

Kim, K. Y.

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

Klarskov, P.

T. Wang, P. Klarskov, and P. U. Jepsen, “Ultrabroadband THz time-domain spectroscopy of a free-flowing water film,” IEEE Trans. Terahertz Sci. Technol. 4, 425–431 (2014).

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Koch, M.

P. U. Jepsen, D. G. Cooke, and M. Koch, “Terahertz spectroscopy and imaging–modern techniques and applications,” Laser Photon. Rev. 5, 124–166 (2011).

Krebs, F. C.

D. G. Cooke, F. C. Krebs, and P. U. Jepsen, “Direct observation of sub-100 fs mobile charge generation in a polymer-fullerene film,” Phys. Rev. Lett. 108, 056603 (2012).
[Crossref]

Kress, M.

Lamont, M. R. E.

Lavrinenko, A. V.

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Li, Q.

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Lo, T.

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

Löffler, T.

Luther-Davies, B.

MacDonald, A. N.

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Madden, S.

Malureanu, R.

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Martin, P.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Meldrum, A.

D. G. Cooke, A. Meldrum, and P. U. Jepsen, “Ultrabroadband terahertz conductivity of Si nanocrystal films,” Appl. Phys. Lett. 101, 211107 (2012).
[Crossref]

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Meynadier, P.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Moss, D. J.

Neilson, J. R.

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

Nguyen, H. C.

Novitsky, A.

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Oh, T. I.

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

Olsen, N. B.

P. Viščor and N. B. Olsen, “Frequency and time response in relaxation time semiconductors,” J. Non-Cryst. Solids 90, 25–28 (1987).
[Crossref]

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

Parrott, E. P. J.

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

Pedersen, I. H.

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

Perdrix, M.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Petite, G.

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

Petkov, K.

K. Petkov and P. J. S. Ewen, “Photoinduced changes in the linear and non-linear optical properties of chalcogenide glasses,” J. Non-Cryst. Solids 249, 150–159 (1999).
[Crossref]

Ponseca, C. S.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

Popescu, A.

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Rodriguez, G.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

Roskos, H. G.

Savastru, D.

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Schroder, T. B.

J. C. Dyre and T. B. Schroder, “Universality of ac conduction in disordered solids,” Rev. Mod. Phys. 72, 873–892 (2000).
[Crossref]

Simdyankin, S. I.

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

Smith, N. V.

N. V. Smith, “Classical generalization of the Drude formula for the optical conductivity,” Phys. Rev. B 64, 155106 (2001).
[Crossref]

Stoumpos, C. C.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

Street, R. A.

R. A. Street, “Luminescence in amorphous semiconductors,” Adv. Phys. 25, 397–453 (1976).
[Crossref]

Strikwerda, A. C.

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

Sundstrom, V.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

Ta’eed, V. G.

Taraskin, S. N.

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

Taylor, A. J.

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

Thomson, M.

Valverde-Chavez, D. A.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

Viscor, P.

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

Višcor, P.

P. Viščor and N. B. Olsen, “Frequency and time response in relaxation time semiconductors,” J. Non-Cryst. Solids 90, 25–28 (1987).
[Crossref]

Wang, J.

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

Wang, T.

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

T. Wang, P. Klarskov, and P. U. Jepsen, “Ultrabroadband THz time-domain spectroscopy of a free-flowing water film,” IEEE Trans. Terahertz Sci. Technol. 4, 425–431 (2014).

Williams, R. T.

R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B 18, 7038–7057 (1978).
[Crossref]

Wrisberg, E. A.

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

Xie, X.

J. Dai, X. Xie, and X. C. Zhang, “Detection of broadband terahertz waves with a laser-induced plasma in gases,” Phys. Rev. Lett. 97, 103903 (2006).
[Crossref]

X. Xie, J. M. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Yartsev, A.

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

You, Y. S.

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

Zakery, A.

A. Zakery and S. R. Elliott, “Optical properties and applications of chalcogenide glasses: a review,” J. Non-Cryst. Solids 330, 1–12 (2003).
[Crossref]

A. Zakery and S. R. Elliott, Optical Nonlinearities in Chalcogenide Glasses and Their Applications, Vol. 135 of Springer Series in Optical Sciences (Springer, 2007).

Zalkovskij, M.

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

Zeitler, J. A.

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

Zhang, X.

J.-L. Adam and X. Zhang, Chalcogenide Glasses: Preparation, Properties and Applications (Woodhead, 2013).

Zhang, X. C.

J. Dai, X. Xie, and X. C. Zhang, “Detection of broadband terahertz waves with a laser-induced plasma in gases,” Phys. Rev. Lett. 97, 103903 (2006).
[Crossref]

X. Xie, J. M. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Adv. Phys. (1)

R. A. Street, “Luminescence in amorphous semiconductors,” Adv. Phys. 25, 397–453 (1976).
[Crossref]

Appl. Phys. A (1)

K. A. Aly, “Optical band gap and refractive index dispersion parameters of AsxSe70Te30-x (0 < x < 30 at.%) amorphous films,” Appl. Phys. A 99, 913–919 (2010).

Appl. Phys. Lett. (3)

M. Zalkovskij, C. Z. Bisgaard, A. Novitsky, R. Malureanu, D. Savastru, A. Popescu, P. U. Jepsen, and A. V. Lavrinenko, “Ultrabroadband terahertz spectroscopy of chalcogenide glasses,” Appl. Phys. Lett. 100, 031901 (2012).
[Crossref]

D. G. Cooke, A. Meldrum, and P. U. Jepsen, “Ultrabroadband terahertz conductivity of Si nanocrystal films,” Appl. Phys. Lett. 101, 211107 (2012).
[Crossref]

M. Zalkovskij, A. C. Strikwerda, K. Iwaszczuk, A. Popescu, D. Savastru, R. Malureanu, A. V. Lavrinenko, and P. U. Jepsen, “Terahertz-induced Kerr effect in amorphous chalcogenide glasses,” Appl. Phys. Lett. 103, 221102 (2013).
[Crossref]

Energy Environ. Sci. (1)

D. A. Valverde-Chavez, C. S. Ponseca, C. C. Stoumpos, A. Yartsev, M. G. Kanatzidis, V. Sundstrom, and D. G. Cooke, “Intrinsic femtosecond charge generation dynamics in single crystal CH3NH3PbI3,” Energy Environ. Sci. 8, 3700–3707 (2015).
[Crossref]

IEEE Trans. Terahertz Sci. Technol. (1)

T. Wang, P. Klarskov, and P. U. Jepsen, “Ultrabroadband THz time-domain spectroscopy of a free-flowing water film,” IEEE Trans. Terahertz Sci. Technol. 4, 425–431 (2014).

J. Infrared Millim. Terahertz Waves (1)

T. Wang, K. Iwaszczuk, E. A. Wrisberg, E. V. Denning, and P. U. Jepsen, “Linearity of air-biased coherent detection for terahertz time-domain spectroscopy,” J. Infrared Millim. Terahertz Waves 37, 592–604 (2016).
[Crossref]

J. Non-Cryst. Solids (5)

M. B. El-Den, N. B. Olsen, I. H. Pedersen, and P. Viscor, “DC and AC electrical transport in AsSeTe systems,” J. Non-Cryst. Solids 92, 20–30 (1987).
[Crossref]

P. Viščor and N. B. Olsen, “Frequency and time response in relaxation time semiconductors,” J. Non-Cryst. Solids 90, 25–28 (1987).
[Crossref]

K. Petkov and P. J. S. Ewen, “Photoinduced changes in the linear and non-linear optical properties of chalcogenide glasses,” J. Non-Cryst. Solids 249, 150–159 (1999).
[Crossref]

A. Zakery and S. R. Elliott, “Optical properties and applications of chalcogenide glasses: a review,” J. Non-Cryst. Solids 330, 1–12 (2003).
[Crossref]

E. P. J. Parrott, J. A. Zeitler, L. F. Gladden, S. N. Taraskin, and S. R. Elliott, “Extracting accurate optical parameters from glasses using terahertz time-domain spectroscopy,” J. Non-Cryst. Solids 355, 1824–1827 (2009).
[Crossref]

Laser Photon. Rev. (1)

P. U. Jepsen, D. G. Cooke, and M. Koch, “Terahertz spectroscopy and imaging–modern techniques and applications,” Laser Photon. Rev. 5, 124–166 (2011).

Nat. Photonics (1)

K. Y. Kim, A. J. Taylor, J. H. Glownia, and G. Rodriguez, “Coherent control of terahertz supercontinuum generation in ultrafast laser-gas interactions,” Nat. Photonics 2, 605–609 (2008).
[Crossref]

New J. Phys. (1)

P. Klarskov, A. C. Strikwerda, K. Iwaszczuk, and P. U. Jepsen, “Experimental three-dimensional beam profiling and modeling of a terahertz beam generated from a two-color air plasma,” New J. Phys. 15, 075012 (2013).
[Crossref]

Opt. Express (2)

Opt. Lett. (2)

Phys. Rev. B (5)

D. G. Cooke, A. N. MacDonald, A. Hryciw, J. Wang, Q. Li, A. Meldrum, and F. A. Hegmann, “Transient terahertz conductivity in photoexcited silicon nanocrystal films,” Phys. Rev. B 73, 193311 (2006).
[Crossref]

N. V. Smith, “Classical generalization of the Drude formula for the optical conductivity,” Phys. Rev. B 64, 155106 (2001).
[Crossref]

P. Martin, S. Guizard, P. Daguzan, G. Petite, P. D’Oliveira, P. Meynadier, and M. Perdrix, “Subpicosecond study of carrier trapping dynamics in wide-band-gap crystals,” Phys. Rev. B 55, 5799–5810 (1997).
[Crossref]

R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B 18, 7038–7057 (1978).
[Crossref]

S. C. Jones, A. H. Fischer, P. Braunlich, and P. Kelly, “Prebreakdown energy absorption from intense laser pulses at 532 nm in NaCl,” Phys. Rev. B 37, 755–770 (1988).
[Crossref]

Phys. Rev. Lett. (5)

J. Dai, X. Xie, and X. C. Zhang, “Detection of broadband terahertz waves with a laser-induced plasma in gases,” Phys. Rev. Lett. 97, 103903 (2006).
[Crossref]

D. G. Cooke, F. C. Krebs, and P. U. Jepsen, “Direct observation of sub-100 fs mobile charge generation in a polymer-fullerene film,” Phys. Rev. Lett. 108, 056603 (2012).
[Crossref]

X. Xie, J. M. Dai, and X. C. Zhang, “Coherent control of THz wave generation in ambient air,” Phys. Rev. Lett. 96, 075005 (2006).
[Crossref]

Y. S. You, T. I. Oh, and K. Y. Kim, “Off-axis phase-matched terahertz emission from two-color laser-induced plasma filaments,” Phys. Rev. Lett. 109, 183902 (2012).
[Crossref]

S. N. Taraskin, S. I. Simdyankin, S. R. Elliott, J. R. Neilson, and T. Lo, “Universal features of terahertz absorption in disordered materials,” Phys. Rev. Lett. 97, 055504 (2006).
[Crossref]

Rev. Mod. Phys. (1)

J. C. Dyre and T. B. Schroder, “Universality of ac conduction in disordered solids,” Rev. Mod. Phys. 72, 873–892 (2000).
[Crossref]

Other (2)

A. Zakery and S. R. Elliott, Optical Nonlinearities in Chalcogenide Glasses and Their Applications, Vol. 135 of Springer Series in Optical Sciences (Springer, 2007).

J.-L. Adam and X. Zhang, Chalcogenide Glasses: Preparation, Properties and Applications (Woodhead, 2013).

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Figures (8)

Fig. 1.
Fig. 1. Experimental setup for static and transient THz-TDS. For static spectroscopy, the pump pulse is blocked. The THz beam splitter (BS) together with mirror M are used in reflection mode.
Fig. 2.
Fig. 2. THz time domain traces transmitting through a 54-μm-thick sample of As30Se30Te40 and dry air. The inset shows the corresponding Fourier transformed spectra.
Fig. 3.
Fig. 3. (a) Refractive index and absorption coefficient and (b) the real and imaginary parts of the complex permittivity of As30Se30Te40. The error bars indicate the standard deviation based on three individual measurements.
Fig. 4.
Fig. 4. (a) Differential reflectivity of the THz peak electric field as a function of pump–probe delay time for pump fluences of 0.320.82  mJ/cm2. The symbols are experimental results, and the solid lines represent the decay kinetics model shown in the inset. (b) Normalized decay curves, which show that the kinetics slows down at increasing pump fluence.
Fig. 5.
Fig. 5. 2D map of (a) the real part and (b) the imaginary part of the photoinduced ultrafast conductivity of As30Se30Te40 at a pump fluence of 0.7  mJ/cm2.
Fig. 6.
Fig. 6. 2D map of photoinduced refractive index change of As30Se30Te40 in reflection measurement at pump fluence of 0.7  mJ/cm2.
Fig. 7.
Fig. 7. Complex photoinduced conductivity of As30Se30Te40 at pump fluence of 0.7  mJ/cm2. The solid lines are the fits based on the Drude–Smith model.
Fig. 8.
Fig. 8. Temporal development of the carrier dynamics parameters for As30Se30Te40 extracted from the Drude–Smith model fits at different pump–probe delays. (a) Carrier scattering time τ, (b) backscattering parameter c, and (c) carrier density. The shaded areas indicate the time at which the probe pulse arrives before the pump pulse, with poorly defined fit parameters.

Tables (1)

Tables Icon

Table 1. Parameters for the Oscillator Model for As30Se30Te40

Equations (6)

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

ϵ(ω)=ϵ+A1ω12ω2iγ1ω+A2ω22ω2iγ2ω,
Δr˜(ω,tpp)=(1r˜0r˜0)Z0dσ˜(ω,tpp)1+n+Z0dσ˜(ω,tpp),
Δσ(tpp)=Δr·n212Z0d,
N˙he=σ1I(t)γcoolNhe,N˙e=γcoolNheσcNe(NtrapNte),N˙te=σcNe(NtrapNte),N˙th=γthNh,N˙h=γcoolNhhγthNh,N˙hh=σ1I(t)γcoolNhh,
Δσ(t)Ne(t)/me*+Nte(t)/mte*.
σ(ω)=ωp2ϵ0τ1iωτ(1+c1iωτ),

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