Ye Lihua, Zhao Chong, Feng Yangyang, Gu Bing, Cui Yiping, Lu Yanqing
Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China.
College of Engineering, Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, Jiangsu, 210093, China.
Nanoscale Res Lett. 2017 Dec;12(1):27. doi: 10.1186/s11671-016-1778-x. Epub 2017 Jan 11.
Random lasers from dye-doped nematic liquid crystal (DDNLC) cells with different rubbing methods were observed due to different random ring cavities that were formed. Through constructing cells with different rubbing methods on the forward and backward surfaces of light-emitting sides, we can get two random laser beams with different polarization directions from one DDNLC cell at the same time, and the polarization direction is along the rubbing direction of the light-emitting sides. Additionally, the influence of external electric field on the polarization degree of random lasers was also studied.
观察到来自具有不同摩擦方法的染料掺杂向列相液晶(DDNLC)盒的随机激光,这是由于形成了不同的随机环形腔。通过在发光面的前后表面采用不同的摩擦方法构建液晶盒,我们可以同时从一个DDNLC盒中获得两个偏振方向不同的随机激光束,且偏振方向沿发光面的摩擦方向。此外,还研究了外部电场对随机激光偏振度的影响。