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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers & Short Notes >Advantages of Highly Ordered Polymer-Dyes for Lasing in Chiral Nematic Liquid Crystals
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Advantages of Highly Ordered Polymer-Dyes for Lasing in Chiral Nematic Liquid Crystals

机译：高阶聚合物染料在手性向列液晶中激光发射的优势

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摘要

We have studied lasing in dye-doped chiral nematic liquid crystals (N~*LCs). To demonstrate the advantages of using a polymer dye, that is highly aligned along the local director of N~*LCs, over commercial small molecule dyes such as 4-(dicyanomethylene)-2-methyl-6-(4-dimethylammostryl)-4H-pyran (DCM), comparative studies of the fluorescence spectra, lasing conditions and order parameters have been made using polymer-dye doped N~*LC and DCM-doped N~*LC cells. Right-and left-circularly polarized fluorescence spectra for both dyes were accurately simulated by taking account of their density of modes and order parameters. These results indicate that the greater alignment afforded by the polymer dye in N~*LCs provides ideal conditions for lasing.
机译：我们已经研究了染料掺杂的手性向列液晶（N〜* LCs）中的激光发射。为了证明使用聚合物染料的优势，该染料沿N〜* LCs的局部指向矢高度对齐，优于商用小分子染料，例如4-（二氰基亚甲基）-2-甲基-6-（4-二甲基氨甲基）-4H -吡喃（DCM），使用掺杂聚合物染料的N〜* LC和掺杂DCM的N〜* LC细胞，对荧光光谱，激光条件和有序参数进行了比较研究。考虑到它们的模式密度和有序参数，可以精确地模拟两种染料的左右圆偏振荧光光谱。这些结果表明，聚合物染料在N * LC中提供的更大的排列为激光发射提供了理想的条件。

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