Paper
15 October 2004 Lasing characteristics of a dye-doped nematic liquid crystal layer sandwiched by two polymeric cholesteric liquid crystals
Myoung Hoon Song, Byoungchoo Park, Ki-Chul Shin, Takashi Ohta, Yuko Tsunoda, Hajime Hoshi, Yoichi Takanishi, Ken Ishikawa, Junji Watanabe, Suzushi Nishimura, Takehiro Toyooka, Zhengguo Zhu, Timothy M. Swager, Hideo Takezoe
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Abstract
We have studied the lasing characteristics from a dye-doped nematic layer sandwiched by two polymeric cholesteric liquid crystal (PCLC) films as photonic band gap materials. The nematic layer possessing birefringence brings about the following remarkable optical characteristics; (1) reflectance in the photonic band gap (PBG) region exceeds 50% due to the retardation effect, being unpredictable from a single CLC film, (2) efficient lasing occurs either at the notch of PBG or at the photonic band edge, (3) the lasing emisions contain both right- and left-circular polarizations, and (4) tunable lasing can be achieved by the reorientation of nematic liquid crystal molecule under the application of an electric field.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Myoung Hoon Song, Byoungchoo Park, Ki-Chul Shin, Takashi Ohta, Yuko Tsunoda, Hajime Hoshi, Yoichi Takanishi, Ken Ishikawa, Junji Watanabe, Suzushi Nishimura, Takehiro Toyooka, Zhengguo Zhu, Timothy M. Swager, and Hideo Takezoe "Lasing characteristics of a dye-doped nematic liquid crystal layer sandwiched by two polymeric cholesteric liquid crystals", Proc. SPIE 5518, Liquid Crystals VIII, (15 October 2004); https://doi.org/10.1117/12.562626
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Cited by 2 scholarly publications.
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KEYWORDS
Polymers

Reflectivity

Liquid crystals

Polarization

Solids

Photonic crystals

Polymer thin films

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