Electrically controllable laser based on cholesteric liquid crystal with negative dielectric anisotropy

被引：91

作者：

Lin, TH

Jau, HC

Chen, CH

Chen, YJ

Wei, TH

Chen, CW

Fuh, AYG ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan

[3] Natl Cheng Kung Univ, Dept Phys, Chiayi 621, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 06期

关键词：

D O I：

10.1063/1.2168259

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This work examines a planar cholesteric liquid crystal (CLC) cell with a negative dielectric anisotropy, doped with laser dye, as an electrically tunable one-dimensional photonic crystal laser device. The lasing wavelength is demonstrated to be tunable by applying a voltage. Additionally, lasing can be switched on and off changing the frequency of the applied voltage. Wavelength tuning caused by the shift of the reflection band of CLC is attributed to the electrohydrodynamical effect in the negative dielectric cell. (c) 2006 American Institute of Physics.

引用

页数：3

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