Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates

Jia-De Lin; Hong-Lin Lin; Hsin-Yu Lin; Guan-Jhong Wei; Yu-Chou Chuang; Lin-Jer Chen; Shuan-Yu Huang; Chia-Yi Huang; Ting-Shan Mo; Chia-Rong Lee

doi:10.1039/C7TC00090A

Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates†

Jia-De Lin,

‡^a Hong-Lin Lin,‡^a Hsin-Yu Lin,‡^a Guan-Jhong Wei,‡^a Yu-Chou Chuang,^a Lin-Jer Chen,^a Shuan-Yu Huang,^bc Chia-Yi Huang,^d Ting-Shan Mo^e and Chia-Rong Lee

*^a

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* Corresponding authors

^a Department of Photonics and Advanced Optoelectronics Technology Center, National Cheng Kung University, Tainan 701, Taiwan
E-mail: crlee@mail.ncku.edu.tw

^b Department of Optometry, Chung Shan Medical University, Taichung 402, Taiwan

^c Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung 402, Taiwan

^d Department of Physics, Tunghai University, Taichung, Taiwan

^e Department of Electro-Optical Engineering, Kun Shan University of Technology, Tainan 710, Taiwan

Abstract

Dye-doped nematic liquid crystal refilled gradient-pitched enantiomorphic cholesteric liquid crystal polymer templates are demonstrated. The enantiomorphic device has high reflectivity and wide spectral tunability throughout the entire visible region. This device can also provide low threshold lasing emission with both right- and left-circular polarizations from the blue to the red region.

Journal of Materials Chemistry C

Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates†

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Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates

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