A study of lasing wavelength by DOS in the temperature-tunable cholesteric liquid crystal lasers
A study of lasing wavelength by DOS in the temperature-tunable cholesteric liquid crystal lasers
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DOI：
10.1016/j.optcom.2013.03.031
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发表时间：
2013-07
影响因子：
2.4
通讯作者：
R. Wu;Yong Li;Jie Wu;Ji Ma;Q. Dai
中科院分区：
文献类型：
--
作者：
R. Wu;Yong Li;Jie Wu;Ji Ma;Q. Dai
对于染料掺杂胆甾型液晶（CLC）激光系统，我们根据CLC的透射系数建立了光态密度（DOS）与温度之间的关系，并计算了DOS分布随温度的变化，从而实现了激光波长的可调。通过实验进一步验证了模拟结果，发现染料掺杂CLC的激光发射波长可以通过温度从662nm调谐到622nm，这与我们提出的理论非常吻合。
For the dye-doped cholesteric liquid crystal (CLC) laser system, we established the relationship between the density of optical state (DOS) and temperature based on the transmission coefficient of the CLC, and calculated the change of DOS distribution with the temperature that results in tunable lasing wavelength. The simulation was further verified by the experiment and it was found that the laser emission wavelength from the dye-doped CLC can be tuned from 662 to 622nm by the temperature, which is in good agreement with our proposed theory.