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首页> 外文期刊>Advanced Materials >Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies
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Lasing in Dye-Doped Cholesteric Liquid Crystals: Two New Tuning Strategies

机译：掺杂染料的胆甾型液晶中的激光发射：两种新的调整策略

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摘要

One of the more attractive areas of photonic bandgap media in recent years has been the study of stimulated emission, with the purpose of realizing low-threshold laser devices. In one-dimensional structures, laser emission has been predicted at the photonic band edge, and optically active chiral liquid crystals (LCs) have recently been used to provide feedback for mirrorless organic lasers. The consideration of chiral LCs as a photonic gap medium has stimulated, just in the last five years, observation and investigation of lasing in cholesteric LCs, lyotropic cholesteric LCs, ferroelectric chiral smec-tic C LCs, network polymers, elastomers, and blue phases. The idea of building a LC laser is not new; in fact, several years ago it was expressed in a patent. A theoretical analysis for distributed-feedback laser generation in a dye-doped cholesteric LC has been carried out, and light has been generated in dye-doped cholesteric LCs.
机译：近年来，光子带隙介质最吸引人的领域之一是对受激发射的研究，目的是实现低阈值激光设备。在一维结构中，已经预测了在光子能带边缘的激光发射，并且近来已使用光学活性手性液晶（LC）为无镜有机激光器提供反馈。仅在最近五年中，将手性LC视为光子间隙介质的研究就促进了胆甾醇LC，溶致胆甾醇LC，铁电手性分子C LC，网络聚合物，弹性体和蓝相中激光发射的观察和研究。制造LC激光器的想法并不新鲜；实际上，几年前它已在专利中表达。进行了在染料掺杂的胆甾醇型液晶中产生分布反馈激光的理论分析，并且在染料掺杂的胆甾醇型液晶中产生了光。

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