Electrically Switchable, One‐Dimensional Polymeric Resonators from Holographic Photopolymerization: A New Approach for Active Photonic Bandgap Materials
Electrically Switchable, One‐Dimensional Polymeric Resonators from Holographic Photopolymerization: A New Approach for Active Photonic Bandgap Materials
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DOI：
10.1002/adma.200390056
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发表时间：
2003-02
影响因子：
29.4
通讯作者：
R. Jakubiak;T. Bunning;R. Vaia;L. Natarajan;V. Tondiglia
中科院分区：
文献类型：
--
作者：
R. Jakubiak;T. Bunning;R. Vaia;L. Natarajan;V. Tondiglia
受激发射是通过在一维带隙结构的液晶域内光泵激发色团来证明的，这些结构来自全息聚合物分散液晶（H-PDLC）光栅（见图）。使用H-PDLC也可以实现电切换激光谐振，因为在光栅上施加电场会使液晶的指向矢对准，从而减小折射率分布，从而减小激光作用。
Stimulated emission is demonstratedby optically pumping chromophores within the liquid‐crystal domains of 1D bandgap structures that are derived from holographic polymer‐dispersed liquid‐crystal (H‐PDLC) gratings (see Figure). Electrically switchable laser resonance is also possible using the H‐PDLC, since applying an electric field across the grating aligns the directors of the liquid crystal, diminishing the refractive index profile and, consequently, the lasing action.