液晶与显示2019，Vol.34Issue(10)：935-944,10.DOI:10.3788/YJYXS20193410.0935
光调控的偶氮染料掺杂聚合物分散液晶微管随机激光器
Optically tunable random lasing from azo-dye-doped polymer dispersed liquid crystal in capillary tubes
摘要
Abstract
This study demonstrated the optically tunable random lasing from azo-dye-doped polymer dispersed liquid crystal (PDLC) in capillary tubes,in order to expand new applications for this device.The azo-dye-doped PDLC was prepared in glass capillaries with different core diameters,and the random lasing thresholds of these samples were measured respectively.The spectra of random lasers were measured with increasing the intensity of ultraviolet radiation.The experimental results show that the random laser threshold measurements of different core diameter capillary samples (100 μm,300μm,500 μm) are 11.8 μJ/pulse,8.6 μJ/pulse and 13.2 μJ/pulse.The experimental results also show that as the intensity of ultraviolet radiation increases (from 0 mW/cm2 to 150 mW/cm2),the random laser intensity decreases gradually,and the FWHM of the spectrum becomes wider.And the random lasing showed similar properties under the UV beam with different polarized directions during the optical tuning process.Our work verifies the possibility to fabricate miniature laser devices in cylindrical confinement structures,and extends the application scope of PDLC.关键词
激光和激光光学/染料激光器/液晶/多次散射Key words
laser and laser optics/dye lasers/liquid crystals/multiple scattering分类
信息技术与安全科学引用本文复制引用
王东硕,陈茂洲,戴海涛,罗丹,张晓东,刘昌龙..光调控的偶氮染料掺杂聚合物分散液晶微管随机激光器[J].液晶与显示,2019,34(10):935-944,10.基金项目
国家自然科学基金(No.61177061,No.61405088,No.0401180018) （No.61177061,No.61405088,No.0401180018）
天津市自然科学基金重点项目(No.14JCZDJC31400) Supported by National Natural Science Foundation of China (No.61177061,No.61405088,No.0401180018) （No.14JCZDJC31400）
Key Project of Nature Science Foundation of Tianjin (No.14JCZDJC31400) （No.14JCZDJC31400）
