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Infrared Thermal Emission, Reflection, and Transmission of GaAs Periodic Microstructures

机译：GaAs周期微结构的红外热发射，反射和透射

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摘要

Experimental and theoretical study of thermal emission, transmission, and reflection from bare and coated one-dimensional (1D) and two-dimensional (2D) grating structures on GaAs substrates was carried out. Our experiments have revealed strong correlation between the spectra of thermal emission and the microstructure dimensions. The emissivity enhancement and diminution depends on the groove depth and the spectral range (below or above Rayleigh wavelength). The effects can be attributed to diverse mechanisms: emission escape due to emerging diffraction-order beams, vertical-cavity modes, enhanced optical transmission phenomenon, and electron plasma effect.
机译：对GaAs衬底上裸露和涂层的一维（1D）和二维（2D）光栅结构进行了热发射，透射和反射的实验和理论研究。我们的实验揭示了热辐射光谱与微观结构尺寸之间的强相关性。发射率的增强和减小取决于凹槽的深度和光谱范围（瑞利波长以下或以上）。这些影响可归因于多种机制：由于出现衍射级光束，垂直腔模，增强的光传输现象和电子等离子体效应而导致的发射逸出。

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  • 来源
    《Optical Review》 |2007年第6期|365-367|共3页
  • 作者

    Nathan Pinhas; Mark Auslender; Shlomo Hava;

  • 作者单位

    Department of Electrical and Computer Engineering Ben-Gurion University of the Negev Beer Sheva Israel;

    Department of Electrical and Computer Engineering Ben-Gurion University of the Negev Beer Sheva Israel;

    Department of Electrical and Computer Engineering Ben-Gurion University of the Negev Beer Sheva Israel;

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  • 正文语种 eng
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  • 关键词

    thermal emission; gratings; infrared; microstructures;

    机译：热辐射;光栅;红外;微结构;

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