A nano-patterned photonic crystal laser with a dye-doped liquid crystal
A nano-patterned photonic crystal laser with a dye-doped liquid crystal
复制标题
DOI：
10.1063/1.4816243
复制
发表时间：
2013-07-29
影响因子：
4
通讯作者：
Friend, Richard H.
中科院分区：
文献类型：
--
作者：
Ko, Doo-Hyun;Morris, Stephen M.;Friend, Richard H.
将纳米图案化的二氧化钛光子晶体（PC）覆盖在染料掺杂液晶（LC）的良好取向膜内，构造了分布反馈激光器，由此可以使用电场原位操纵发射特性。这种混合有机-无机结构允许通过LC指向矢的电寻址同时选择光束图案和激光波长。此外，激光发射是在平面和垂直于PC。沿着实验数据，提出了一个理论模型，这是基于近似计算的带结构的双折射，可调谐激光器件。(C)2013 AIP Publishing LLC.
Covering a nano-patterned titanium dioxide photonic crystal (PC) within a well-oriented film of dye-doped liquid crystal (LC), a distributed feedback laser is constructed whereby the emission characteristics can be manipulated in-situ using an electric field. This hybrid organic-inorganic structure permits simultaneous selectivity of both the beam pattern and laser wavelength by electrical addressing of the LC director. In addition, laser emission is obtained both in the plane and normal to the PC. Along with experimental data, a theoretical model is presented that is based upon an approximate calculation of the band structure of this birefringent, tuneable laser device. (C) 2013 AIP Publishing LLC.