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相关实验视频

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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基于表面音声波 polaritons 的窄带扩散热发射器.

Binze Ma1, Yun Huang1, Weiyi Zha1

  • 1State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Nanophotonics (Berlin, Germany)
|December 5, 2024
PubMed
概括

这项研究引入了一种新型的窄带,扩散热发射器,使用碳化上的纳米结构. 这项创新可用于先进的红外应用,实现精确的光谱和空间控制.

关键词:
扩散散热发射器散热发射器狭带宽带是一个狭带宽带.表面的声音 波拉 波拉

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科学领域:

  • 纳米光子学 纳米光子学
  • 超材料是指一种超材料.
  • 热力工程是热力工程中的一个.

背景情况:

  • 控制热辐射对于光谱和空间选择性至关重要.
  • 现有的窄带发射器对角度敏感,而扩散发射器的质量因子较低.
  • 纳米光子方法为同时控制提供了潜在的解决方案.

研究的目的:

  • 为了展示一个同时的窄带和分散的热发射器.
  • 为了实现高质量因子和广泛的空间辐射.
  • 为了探索使用相变材料的可调性.

主要方法:

  • 在碳化上制造80纳米厚的纳米结构.
  • 使用表面声极子来实现连贯发射.
  • 对光谱和角辐射特性进行表征.

主要成果:

  • 在~10.9μm时实现了高质量系数 (Q=101) 狭带发射.
  • 证明了强烈的扩散热辐射,在半最大时具有70°的全角.
  • 通过用Ge2Sb2Te5和In3SbTe2.2等相变材料取代,成功调整了发射.

结论:

  • 开发的纳米结构提供了同时的窄带和分散的热辐射.
  • 这项技术为工程热辐射提供了新的可能性.
  • 潜在的应用包括红外源,辐射冷却,传感和光伏.