Discontinuous shift of lasing wavelength with temperature in cholesteric liquid crystal

被引：130
|
作者：
Funamoto, K [1 ]
Ozaki, M [1 ]
Yoshino, K [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Elect Engn, Suita, Osaka 5650871, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2003年 / 42卷 / 12B期
关键词：
cholesteric liquid crystal; photonic crystal; photonic band gap; lasing; helix;
D O I：
10.1143/JJAP.42.L1523
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The laser action in a dye-doped cholesteric liquid crystal has been investigated as a function of temperature. The discontinuous shift of the lasing wavelength has been observed. It has also been found that the shift of the stop band in the cholesteric liquid crystal is discontinuous when the size of the measured area for the spectrum is small. These results have been interpreted to originate from the disappearance of every half period of the cholesteric liquid crystal helix in the unwinding process as the temperature decreases.
引用
收藏
页码：L1523 / L1525
页数：3
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