Abstract

We fabricated novel hybrid structures composed of a dye-doped low-molecular-weight cholesteric liquid crystal sandwiched by multi-layered polymer cholesteric liquid crystal films and evaluated their lasing characteristics. Lasing was observed with an extremely reduced threshold (12 nJ/pulse) by a factor of 10 compared with that in a simple dye-doped low-molecular-weight cholesteric liquid crystal cell. Lasing characteristics experimentally obtained were discussed by comparing them with the simulated photonic density of states spectra.

©2010 Optical Society of America

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  2. V. I. Kopp, B. Fan, H. K. Vithana, and A. Z. Genack, “Low-threshold lasing at the edge of a photonic stop band in cholesteric liquid crystals,” Opt. Lett. 23(21), 1707–1709 (1998).
    [Crossref]
  3. K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
    [Crossref]
  4. K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
    [Crossref]
  5. Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
    [Crossref]
  6. Y. Zhou, Y. Huang, and S.-T. Wu, “Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector”, Opt. Exp. 14 3906–3916 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-9-3906 .
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    [Crossref]
  8. Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
    [Crossref]
  9. J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
    [Crossref] [PubMed]
  10. M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
    [Crossref]
  11. Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
    [Crossref]
  12. M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
    [Crossref]
  13. M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
    [Crossref]
  14. L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
    [Crossref]
  15. C.-R. Lee, S.-H. Lin, H.-C. Yeh, T.-D. Ji, K.-L. Lin, T.-S. Mo, C.-T. Kuo, K.-Y. Lo, S.-H. Chang, A. Y. Fuh, and S. Y. Huang, “Color cone lasing emission in a dye-doped cholesteric liquid crystal with a single pitch,” Opt. Express 17(15), 12910–12921 (2009).
    [Crossref] [PubMed]
  16. K. Dolgaleva, S. K. H. Wei, S. G. Lukishova, S. H. Chen, K. Schwertz, and R. W. Boyd, “Enhanced laser performance of cholesteric liquid crystals doped with oligofluorene dye,” J. Opt. Soc. Am. B 25(9), 1496–1504 (2008).
    [Crossref]
  17. Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
    [Crossref]
  18. M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
    [Crossref]
  19. Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
    [Crossref]
  20. D. W. Berreman, “Optics in stratified and anisotropic media: 4×4-matrix formulation,” J. Opt. Soc. Am. 62(4), 502–510 (1972).
    [Crossref]
  21. J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
    [Crossref] [PubMed]
  22. J. Schmidtke and W. Stille, “Fluorescence of a dye-doped cholesteric liquid crystal film in the region of the stop band: theory and experiment,” Eur. Phys. J. B 31(2), 179–194 (2003).
    [Crossref]
  23. V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
    [Crossref] [PubMed]
  24. O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
    [Crossref] [PubMed]
  25. Y. Takanishi and H. Takezoe, in preparation.

2009 (2)

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

C.-R. Lee, S.-H. Lin, H.-C. Yeh, T.-D. Ji, K.-L. Lin, T.-S. Mo, C.-T. Kuo, K.-Y. Lo, S.-H. Chang, A. Y. Fuh, and S. Y. Huang, “Color cone lasing emission in a dye-doped cholesteric liquid crystal with a single pitch,” Opt. Express 17(15), 12910–12921 (2009).
[Crossref] [PubMed]

2008 (1)

2007 (4)

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

2006 (3)

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

V. A. Belyakov, “Low threshold DFB Lasing in chiral LC at diffraction of pumping wave,” Mol. Cryst. Liq. Cryst. (Phila. Pa.) 453(1), 43–69 (2006).
[Crossref]

2005 (3)

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

2004 (1)

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

2003 (3)

J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
[Crossref] [PubMed]

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

J. Schmidtke and W. Stille, “Fluorescence of a dye-doped cholesteric liquid crystal film in the region of the stop band: theory and experiment,” Eur. Phys. J. B 31(2), 179–194 (2003).
[Crossref]

2001 (1)

V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
[Crossref] [PubMed]

1999 (1)

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

1998 (1)

1996 (1)

J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
[Crossref] [PubMed]

1987 (1)

E. Yablonovitch, “Inhibited spontaneous emission in solid-state physics and electronics,” Phys. Rev. Lett. 58(20), 2059–2062 (1987).
[Crossref] [PubMed]

1972 (1)

Amemiya, K.

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

Araoka, F.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Bass, M.

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Belyakov, V. A.

V. A. Belyakov, “Low threshold DFB Lasing in chiral LC at diffraction of pumping wave,” Mol. Cryst. Liq. Cryst. (Phila. Pa.) 453(1), 43–69 (2006).
[Crossref]

Bendickson, J. M.

J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
[Crossref] [PubMed]

Berreman, D. W.

Blinov, L. M.

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

Boyd, R. W.

Chang, S.-H.

Chee, M. G.

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

Chen, S. H.

Chung, I. J.

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

Cipparrone, G.

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

Dapkus, P. D.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Dolgaleva, K.

Dowling, J. P.

J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
[Crossref] [PubMed]

Fan, B.

Finkelmann, H.

J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
[Crossref] [PubMed]

Fuh, A. Y.

Fujii, A.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Genack, A. Z.

V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
[Crossref] [PubMed]

V. I. Kopp, B. Fan, H. K. Vithana, and A. Z. Genack, “Low-threshold lasing at the edge of a photonic stop band in cholesteric liquid crystals,” Opt. Lett. 23(21), 1707–1709 (1998).
[Crossref]

Ha, N. Y.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

Hoshi, H.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Huang, S. Y.

Huang, Y.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Ishikawa, K.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Ji, T.-D.

Kim, D.

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

Kim, I.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Konishi, G.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Kopp, V. I.

V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
[Crossref] [PubMed]

V. I. Kopp, B. Fan, H. K. Vithana, and A. Z. Genack, “Low-threshold lasing at the edge of a photonic stop band in cholesteric liquid crystals,” Opt. Lett. 23(21), 1707–1709 (1998).
[Crossref]

Kuo, C.-T.

Lazarev, V. V.

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

Lee, C.-R.

Lee, R. K.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Lin, K.-L.

Lin, S.-H.

Lo, K.-Y.

Lukishova, S. G.

Matsuhisa, Y.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

Matsui, T.

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

Mazzulla, A.

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

Mo, T.-S.

Nagata, T.

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

Nishimura, S.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

O’Brien, J. D.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Ohta, T.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Ozaki, M.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

Ozaki, R.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

Pagliusi, P.

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

Painter, O.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Park, B.

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Rapaport, A.

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Scalora, M.

J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
[Crossref] [PubMed]

Scherer, A.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Schmidtke, J.

J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
[Crossref] [PubMed]

J. Schmidtke and W. Stille, “Fluorescence of a dye-doped cholesteric liquid crystal film in the region of the stop band: theory and experiment,” Eur. Phys. J. B 31(2), 179–194 (2003).
[Crossref]

Schwertz, K.

Shin, K.-C.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Song, M. H.

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Stille, W.

J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
[Crossref] [PubMed]

J. Schmidtke and W. Stille, “Fluorescence of a dye-doped cholesteric liquid crystal film in the region of the stop band: theory and experiment,” Eur. Phys. J. B 31(2), 179–194 (2003).
[Crossref]

Swager, T. M.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Takanishi, Y.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Y. Takanishi and H. Takezoe, in preparation.

Takao, Y.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Takezoe, H.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Y. Takanishi and H. Takezoe, in preparation.

Tomoe, N.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

Toyooka, T.

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Tsunoda, Y.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Uchimura, M.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Vithana, H. K.

Watanabe, J.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Watanabe, Y.

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Wei, S. K. H.

Wu, J. W.

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

Wu, S.-T.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Yablonovitch, E.

E. Yablonovitch, “Inhibited spontaneous emission in solid-state physics and electronics,” Phys. Rev. Lett. 58(20), 2059–2062 (1987).
[Crossref] [PubMed]

Yariv, A.

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Yeh, H.-C.

Yoshino, K.

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

Zhang, Z. Q.

V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
[Crossref] [PubMed]

Zhou, Y.

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Zhu, Z.

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

Adv. Mater. (2)

M. H. Song, B. Park, K.-C. Shin, T. Ohta, Y. Tsunoda, H. Hoshi, Y. Takanishi, K. Ishikawa, J. Watanabe, S. Nishimura, T. Toyooka, Z. Zhu, T. M. Swager, and H. Takezoe, “Effect of phase retardation on defect-mode lasing in polymeric cholesteric liquid crystals,” Adv. Mater. 16(910), 779–783 (2004).
[Crossref]

M. H. Song, N. Y. Ha, K. Amemiya, B. Park, Y. Takanishi, K. Ishikawa, J. W. Wu, S. Nishimura, T. Toyooka, and H. Takezoe, “Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure,” Adv. Mater. 18(2), 193–197 (2006).
[Crossref]

Appl. Phys. Express (1)

Y. Watanabe, M. Uchimura, F. Araoka, G. Konishi, J. Watanabe, and H. Takezoe, “Extremely low threshold in a Pyrene-doped distributed feedback cholesteric liquid crystal Laser,” Appl. Phys. Express 2(10), 102501 (2009).
[Crossref]

Appl. Phys. Lett. (2)

Y. Zhou, Y. Huang, A. Rapaport, M. Bass, and S.-T. Wu, “Doubling the optical efficiency of a chiral liquid crystal laser using a reflector,” Appl. Phys. Lett. 87(23), 231107 (2005).
[Crossref]

Y. Matsuhisa, Y. Huang, Y. Zhou, S.-T. Wu, R. Ozaki, Y. Takao, A. Fujii, and M. Ozaki, “Low-threshold and high efficiency lasing upon band-edge excitation in a cholesteric liquid crystal,” Appl. Phys. Lett. 90(9), 091114 (2007).
[Crossref]

Eur. Phys. J. B (1)

J. Schmidtke and W. Stille, “Fluorescence of a dye-doped cholesteric liquid crystal film in the region of the stop band: theory and experiment,” Eur. Phys. J. B 31(2), 179–194 (2003).
[Crossref]

J. Appl. Phys. (1)

L. M. Blinov, G. Cipparrone, A. Mazzulla, P. Pagliusi, and V. V. Lazarev, “Lasing in cholesteric liquid crystal cells: Competition of Bragg and leaky modes,” J. Appl. Phys. 101(5), 053104 (2007).
[Crossref]

J. Opt. Soc. Am. (1)

J. Opt. Soc. Am. B (1)

Jpn. J. Appl. Phys. (5)

Y. Takanishi, N. Tomoe, N. Y. Ha, T. Toyooka, S. Nishimura, K. Ishikawa, and H. Takezoe, “Defect-mode lasing from a three-layered helical cholesteric liquid crystal structure,” Jpn. J. Appl. Phys. 46(No. 6A), 3510–3513 (2007).
[Crossref]

M. G. Chee, M. H. Song, D. Kim, H. Takezoe, and I. J. Chung, “Lowering lasing threshold in chiral nematic liquid crystal structure with different anisotropy,” Jpn. J. Appl. Phys. 46(18), L437–L439 (2007).
[Crossref]

M. Ozaki, R. Ozaki, T. Matsui, and K. Yoshino, “Twist-defect-mode lasing in photopolymerized cholesteric liquid crystal,” Jpn. J. Appl. Phys. 42(Part 2, No. 5A), L472–L475 (2003).
[Crossref]

K. Amemiya, T. Nagata, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Enhancement of laser emission intensity in dye-doped cholesteric liquid crystals with single-output window,” Jpn. J. Appl. Phys. 44(No. 6A), 3748–3750 (2005).
[Crossref]

K. Amemiya, M. H. Song, Y. Takanishi, K. Ishikawa, S. Nishimura, T. Toyooka, and H. Takezoe, “Lowering the lasing threshold by introducing cholesteric liquid crystal films to dye-doped cholesteric liquid crystal cell surface,” Jpn. J. Appl. Phys. 44(11), 7966–7971 (2005).
[Crossref]

Mol. Cryst. Liq. Cryst. (Phila. Pa.) (1)

V. A. Belyakov, “Low threshold DFB Lasing in chiral LC at diffraction of pumping wave,” Mol. Cryst. Liq. Cryst. (Phila. Pa.) 453(1), 43–69 (2006).
[Crossref]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics (1)

J. M. Bendickson, J. P. Dowling, and M. Scalora, “Analytic expressions for the electromagnetic mode density in finite, one-dimensional, photonic band-gap structures,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 53(4), 4107–4121 (1996).
[Crossref] [PubMed]

Phys. Rev. Lett. (3)

E. Yablonovitch, “Inhibited spontaneous emission in solid-state physics and electronics,” Phys. Rev. Lett. 58(20), 2059–2062 (1987).
[Crossref] [PubMed]

V. I. Kopp, A. Z. Genack, and Z. Q. Zhang, “Large coherence area thin-film photonic stop-band lasers,” Phys. Rev. Lett. 86(9), 1753–1756 (2001).
[Crossref] [PubMed]

J. Schmidtke, W. Stille, and H. Finkelmann, “Defect mode emission of a dye doped cholesteric polymer network,” Phys. Rev. Lett. 90(8), 083902 (2003).
[Crossref] [PubMed]

Science (1)

O. Painter, R. K. Lee, A. Scherer, A. Yariv, J. D. O’Brien, P. D. Dapkus, and I. Kim, “Two-dimensional photonic band-Gap defect mode laser,” Science 284(5421), 1819–1821 (1999).
[Crossref] [PubMed]

Thin Solid Films (1)

Y. Matsuhisa, R. Ozaki, K. Yoshino, and M. Ozaki, “Laser action in one-dimensional double periodic structure with cholesteric liquid crystal,” Thin Solid Films 509(1-2), 189–192 (2006).
[Crossref]

Other (2)

Y. Zhou, Y. Huang, and S.-T. Wu, “Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector”, Opt. Exp. 14 3906–3916 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-9-3906 .

Y. Takanishi and H. Takezoe, in preparation.

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Figures (3)

Fig. 1
Fig. 1 The emission spectra of (a) normal-cell, (b) LLL-cell, (c) RLR-cell, (d) LRLRL-cell, and (e) RLLLR-cell. Calculated (c/n)DOS of (f) normal-cell, (g) LLL-cell, (h) RLR-cell, (i) LRLRL-cell, and (j) RLLLR-cell. The refractive indices and helical pitch of the PCLC used for the simulation are n e = 1.78, n o = 1.56, and p = 299 nm, and those of the low molecular CLC are n e = 1.63, n o = 1.49, and p = 304 nm, respectively. The thicknesses of the PCLC and the low-CLC are 1.8 and 16.0 μm, respectively. Incident light is linearly polarized normal to the rubbing direction. Left-handed circular polarized was used for DOS calculation. The resolutions of wavelength (Δλ) were 0.001 nm (red broken line) and 0.0001nm (black bold line). Because of the extremely large amounts of data, the calculation was only made around the peak position (480~510 nm) in case of Δλ = 0.0001 nm. Peak positions are almost the same for both cases, but peak intensities for Δλ = 0.0001 nm is larger than those for Δλ = 0.001 nm. Green dotted line in (a) is the transmission spectrum of the active (low-CLC) layer.

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Fig. 2
Fig. 2 Log-log plot of emission intensity in each cell as a function of excitation energy. Thickness of a low-CLC was 16 μm, and the wavelength of the excitation energy was 410 nm.

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Fig. 3
Fig. 3 Photographs of the lasing beam patterns obtained from (a) RLR-cell and (b) LLL-cell.

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Tables (1)

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Table 1 Threshold intensity and FWHM of laser emission peaks of each cell.

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