物理学报Issue(4)：262-265,4.DOI:10.7498/aps.62.044219
楔形盒染料掺杂胆甾相液晶激光器研究
Investigation of the laser action in a dye-doped cholesteric liquid crystal wedge cell∗
摘要
Abstract
The wedge cell of cholesteric liquid crystal device is designed and fabricated, and doping PM580 (exciton) in the cholesteric liquid crystal, the laser emission action is studied. There appear a series of parallel wedge edges of dislocation lines and different shapes of domain in the wedge cell. The planar state of alignment is confirmed. A second harmonic Nd:YAG 532 nm laser is adopted as a pump light beam, and then one-dimensional tunable laser radiation is obtained and its wavelength interval is approximately 1 nm and tuning range is about 17 nm. In the processs of interaction between the torques of LC and the surface anchoring of direction film, the pitch elongation takes place. The positon of photonic band gap is changed, so the laser radiation wavelength can be tuned in the band edge.关键词
胆甾相液晶/楔形盒/激光辐射Key words
cholesteric liquid crystal/wedge cell/laser radiation引用本文复制引用
岱钦,李勇,乌日娜,耿岳,全薇,李业秋,彭增辉,姚丽双..楔形盒染料掺杂胆甾相液晶激光器研究[J].物理学报,2013,(4):262-265,4.基金项目
中央高校基本科研业务经费(批准号:2012LWB49)资助的课题 （批准号:2012LWB49）
