title: Study on the Polarization of Random Lasers from Dye-Doped Nematic Liquid Crystals.
abstract: 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.
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China. ylh@seu.edu.cn.
authors.forename: Lihua
authors.initials: L
authors.lastname: Ye
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China.
authors.forename: Chong
authors.initials: C
authors.lastname: Zhao
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China.
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Feng
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Gu
authors.affiliation: Advanced Photonics Center, Southeast University, Nanjing, Jiangsu, 210096, China.
authors.forename: Yiping
authors.initials: Y
authors.lastname: Cui
authors.affiliation: College of Engineering, Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, Jiangsu, 210093, China.
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Lu
keywords: Liquid crystals; Polarization; Random lasers