Fuh Andy, Lin Tsung-Hsien, Liu J-H, Wu F-C
Opt Express. 2004 May 3;12(9):1857-63. doi: 10.1364/opex.12.001857.
This letter addresses a dye-doped planar cholesteric cell as a one-dimensional photonic crystal, which can be lased at the band edges of the photonic band gap. The effect of the composition of the material and the thickness of a cholesteric cell (CLC) on the lasing action, and the photo-control of the lasing frequency, are experimentally investigated. Adding a tunable chiral monomer (TCM) allows the CLC's reflection band to be tuned by varying the intensity and/or exposure time of the UV curing light, enabling the lasing frequency of the CLC sample to be tuned.
这封信讨论了一种染料掺杂的平面胆甾相液晶盒作为一维光子晶体，它可以在光子带隙的带边处产生激光。实验研究了材料组成和胆甾相液晶盒（CLC）厚度对激光作用的影响，以及激光频率的光控。添加可调节手性单体（TCM）可通过改变紫外固化光的强度和/或曝光时间来调节CLC的反射带，从而实现对CLC样品激光频率的调节。
