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Plasmonic random aser from dye-doped cholesteric liquid crystals incorporating silver nanoprisms

机译:来自染料掺杂的胆甾型液晶的等离子体随机剂掺入银纳米棱镜

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摘要

Plasmonic random lasers have been demonstrated in combining dye-doped cholesteric liquid crystals (DD-CLCs) and silver nanoparticles (AgNPs). The DD-CLC laser reveals the lowest threshold and highest slope efficiency through the localized surface plasmon resonance of AgNPs with the best coupling of the emission spectrum of lasing dye and resonance of electron oscillation on the metal surface. Thermal control of the DD-CLC lasers has been achieved to simultaneously shift the long- and short-edge lasing peaks. By the a-stable analysis, the DD-CLC random laser (RL) reveals heavy tail distribution with relatively low alpha similar to 1.06 to show the Levy behavior. Owing to its low spatial coherence, the DD-CLC RL has been demonstrated to produce a speckle-reduced image with a lower contrast of about 0.04. (C) 2020 Optical Society of America
机译:已在组合染料掺杂的胆甾醇型液晶(DD-CLC)和银纳米颗粒(AgNP)中证明了等离子体随机激光器。 DD-CLC激光器通过局部表面等离子体共振揭示最低阈值和最高斜率效率,其具有激光染料的发射光谱的最佳耦合和金属表面上的电子振荡的共振。 已经实现了DD-CLC激光器的热控制以同时移动长边和短边峰值。 通过A稳定的分析,DD-CLC随机激光(RL)揭示了具有相对低的α的重型尾部分布,类似于1.06,以显示征收行为。 由于其低空间相干性,已经证明了DD-CLC RL以产生散斑减少的图像,其对比度约为0.04。 (c)2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第18期|共4页
  • 作者单位

    Natl Taipei Univ Technol Dept Electroopt Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Dept Electroopt Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Inst Organ &

    Polymer Mat Res &

    Dev Ctr Smart Text Technol Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Dept Electroopt Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Dept Electroopt Engn Taipei 10608 Taiwan;

    Natl Taipei Univ Technol Dept Electroopt Engn Taipei 10608 Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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