物理学报2012，Vol.61Issue(11)：314-318,5.
向列相液晶染料可调谐激光器的研究
Investigation of the tunable laser of one-dimensional photonic crystal with dye-doped nematic liquid crystal defect layer
摘要
Abstract
We investigate the optical characteristics of the tunable laser of a one-dimensional photonic crystal（ID PC） containing Dye-doped nematic liquid crystal（NLC）.The dielectric multilayer consisting of an alternating stack of SiC〉2 and TiO2 layers is used as the ID PC whose defect layer is filled with the laser dye and NLC.The central wavelength of the stop band of the 1D PC is 650 nm.A second-harmonic light of a Q-switched Nd：YAG laser has a wavelength of 532 nm,and is used for excitation.With the temperature increasing from 25.5℃to 48℃,the emission wavelength of the tunable laser is continuously shifted from 605.5 to 639.8 nm,the total wavelength shifts is 34.4 nm.With the external voltage increasing from 0 to 2.86 V,the emission wavelength of the tunable laser is shifted from 634.5 to 619.5 nm,the total wavelength shifts are 15 nm.The lasing threshold was about 12.3μJ/pulse,and the linewidth of the emission peak was less than 1 nm.关键词
可调谐激光器/向列相液晶/染料Key words
tunable laser/nematic liquid crystal/dye分类
数理科学引用本文复制引用
刘永军,孙伟民,刘晓颀,姚丽双,鲁兴海,宣丽..向列相液晶染料可调谐激光器的研究[J].物理学报,2012,61(11):314-318,5.基金项目
国家自然科学基金 （）
高等学校博士学科点号项科研基金 （）
黑龙江省博士后基金（批准号：LBH-Z10216）资助的课题 （）
