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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 5 — Mar. 1, 2010
  • pp: 5021–5027

Circularly polarized high-efficiency cholesteric liquid crystal lasers with a tunablenematic phase retarder

Hamidreza Shirvani-Mahdavi, Ezeddin Mohajerani, and Shin-Tson Wu  »View Author Affiliations


Optics Express, Vol. 18, Issue 5, pp. 5021-5027 (2010)
http://dx.doi.org/10.1364/OE.18.005021


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Abstract

A high efficiency dye-doped cholesteric liquid crystal (CLC) is demonstrated by optimizing the dye concentration and using an electrically tunable nematic liquid crystal (NLC) phase retarder. The state of polarization of laser emission in CLC lasers, contrary to our expectations, due to the refractive index mismatch at the boundaries is not exactly circular. A double-cell structure including a CLC laser and an adjustable NLC phase retarder with a mirror reflector on one of the inner surfaces not only purifies the polarization state of the laser output but also improves the laser efficiency by 6.7X, over the single-direction dye-doped CLC laser.

© 2010 OSA

OCIS Codes
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: January 14, 2010
Revised Manuscript: February 19, 2010
Manuscript Accepted: February 22, 2010
Published: February 25, 2010

Citation
Hamidreza Shirvani-Mahdavi, Ezeddin Mohajerani, and Shin-Tson Wu, "Circularly polarized high-efficiency cholesteric liquid crystal lasers with a tunable nematic phase retarder," Opt. Express 18, 5021-5027 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-5021


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References

  1. S. S. Choi, F. Castles, S. M. Morris, and H. J. Coles, “High contrast chiral nematic liquid crystal device using negative dielectric material,” Appl. Phys. Lett. 95(19), 193502 (2009). [CrossRef]
  2. Z. Ge, S. T. Wu, S. S. Kim, J. W. Park, and S. H. Lee, “Thin cell fringe-field-switching liquid crystal display with a chiral dopant,” Appl. Phys. Lett. 92(18), 181109 (2008). [CrossRef]
  3. J. Hwang, M. H. Song, B. Park, S. Nishimura, T. Toyooka, J. W. Wu, Y. Takanishi, K. Ishikawa, and H. Takezoe, “Electro-tunable optical diode based on photonic bandgap liquid-crystal heterojunctions,” Nat. Mater. 4(5), 383–387 (2005). [CrossRef] [PubMed]
  4. N. Y. Ha, Y. Ohtsuka, S. M. Jeong, S. Nishimura, G. Suzaki, Y. Takanishi, K. Ishikawa, and H. Takezoe, “Fabrication of a simultaneous red-green-blue reflector using single-pitched cholesteric liquid crystals,” Nat. Mater. 7(1), 43–47 (2008). [CrossRef]
  5. V. I. Kopp, B. Fan, H. K. M. 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]
  6. S. M. Morris, A. D. Ford, M. N. Pivnenko, and H. J. Coles, “Enhanced emission from liquid-crystal lasers,” J. Appl. Phys. 97(2), 023103 (2005). [CrossRef]
  7. F. Araoka, K. C. Shin, Y. Takanishi, K. Ishikawa, Z. Zhu, T. M. Swager, and H. Takezoe, “How doping a cholesteric liquid crystal with polymeric dye improves an order parameter and makes possible low threshold lasing,” J. Appl. Phys. 94(1), 279–283 (2003). [CrossRef]
  8. K. C. Shin, F. Araoka, B. Park, Y. Takanishi, K. Ishikawa, Z. Zhu, T. M. Swager, and H. Takezoe, “Advantages of highly ordered polymer-dyes for lasing in chiral nematic liquid crystals,” Jpn. J. Appl. Phys. 43(2), 631–636 (2004). [CrossRef]
  9. T. Matsui, R. Ozaki, K. Funamoto, M. Ozaki, and K. Yoshino, “Flexible mirrorless laser based on a free-standing film of photopolymerized cholesteric liquid crystal,” Appl. Phys. Lett. 81(20), 3741–3743 (2002). [CrossRef]
  10. J. Schmidtke, W. Stille, H. Finkelmann, and S. T. Kim, “Laser emission in a dye doped cholesteric polymer network,” Adv. Mater. 14(10), 746–749 (2002). [CrossRef]
  11. Y. Zhou, Y. Huang, and S. T. Wu, “Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector,” Opt. Express 14(9), 3906–4485 (2006). [CrossRef] [PubMed]
  12. Y. Zhou, Y. Huang, Z. Ge, L. P. Chen, Q. Hong, T. X. Wu, and S. T. Wu, “Enhanced photonic band edge laser emission in a cholesteric liquid crystal resonator,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 74(6), 061705 (2006). [CrossRef]
  13. P. G. de Gennes, and J. Prost, The Physics of Liquid Crystals (Oxford, 1995).
  14. K. Iizuka, Elements of Photonics (Toronto, Wiley-Interscience, 2002).
  15. S. T. Wu, U. Efron, and L. D. Hess, “Birefringence measurements of liquid crystals,” Appl. Opt. 23(21), 3911–3915 (1984). [CrossRef] [PubMed]
  16. S. M. Morris, A. D. Ford, C. Gillespie, M. N. Pivnenko, O. Hadeler, and H. J. Coles, “The emission characteristics of liquid-crystal lasers,” J. SID 14, 565–573 (2006).
  17. Y. Huang, Y. Zhou, Q. Hong, A. Rapaport, M. Bass, and S. T. Wu, “Incident angle and polarization effects on the dye-doped cholesteric liquid crystal laser,” Opt. Commun. 261(1), 91–96 (2006). [CrossRef]

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