Infrared and Laser Engineering, Volume. 46, Issue 3, 305002(2017)
Research of dye-doped cholesteric nematic liquid crystal laser characteristic
Dye-doped cholesteric liquid crystal laser was designed and manufactured, and the output characteristic of the device was measured and analyzed. The cholesteric liquid crystal laser device of planar alignment state texture was prepared by doping laser dye DCM and chiral compound S-811 into nematic liquid crystal TEB30A. By using doubled frequency 532 nm Nd:YAG pulsed laser as pumping source to pump the device, the band edge lasing emission was obtained at 607 nm and 680 nm. The line-width was less than 0.5 nm. Then the energy threshold characteristic of the laser and the energy distribution of the lasing spot were measured and analyzed. In the liquid crystal device, photonic density of states is greatest at the edge of the photonic band gap, threshold is lower and laser radiation is obtained easily.
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Wu Rina, Li Man, Shi Ruixin, Wu Xiaojiao, Dai Qin, Yao Jun. Research of dye-doped cholesteric nematic liquid crystal laser characteristic[J]. Infrared and Laser Engineering, 2017, 46(3): 305002
Category: 激光器技术
Received: Jul. 5, 2016
Accepted: Aug. 3, 2016
Published Online: Jun. 27, 2017
The Author Email: Rina Wu (wurina2007@126.com)