Enhanced photonic band edge laser emission in a cholesteric liquid crystal resonator
Enhanced photonic band edge laser emission in a cholesteric liquid crystal resonator
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DOI：
10.1103/physreve.74.061705
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发表时间：
2006-12-01
影响因子：
2.4
通讯作者：
Wu, Shin-Tson
中科院分区：
文献类型：
--
作者：
Zhou, Ying;Huang, Yuhua;Wu, Shin-Tson
报道了一种高效率的光子带边染料掺杂液晶（CLC）激光器。通过在由两个无源CLC反射器组成的谐振器内放置有源CLC单元，激光效率显著提高。利用改进的4 × 4传输矩阵和散射矩阵的理论分析表明，带边激光模式可以由外部CLC谐振腔支持，其最佳输出可以通过相对薄的有源CLC层和薄的无源CLC反射器来实现。理论分析与实验结果吻合较好。
A highly efficient photonic band edge dye-doped cholesteric liquid crystal (CLC) laser is demonstrated. By sandwiching an active CLC cell within a resonator consisting of two passive CLC reflectors, the lasing efficiency is dramatically enhanced. Theoretical analysis using the improved 4x4 transfer matrix and scattering matrix shows that the band edge laser mode can be supported by the external CLC resonator and its optimal output can be achieved by a relatively thin active CLC layer and thin passive CLC reflectors. Theoretical analysis agrees well with the experimental results.