Experimental confirmation of Bethe's diffraction theory

2011 International Conference on Infrared, Millimeter, and Terahertz Waves Pub Date : 2011-12-15 DOI:10.1109/IRMMW-THZ.2011.6105123

O. Kwon, S. Pak, J. So, In-Keun Baik, Sun-Hong Min, G. Park

引用次数: 2

Abstract

Utilizing high power CW THz Coupled Cavity BWO (CCBWO), over 108 of Signal to Noise Ratio (SNR) is obtained. Extreme subwavelength apertures are perforated on ultrathin aluminum films by micro-photo-etching and It is proved that the transmittance normalized to hole size is proportional to 4th power of the ratio between hole size to incident wavelength for a<<λ as Bethe's expectation.

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贝特衍射理论的实验证实

利用大功率连续波太赫兹耦合腔BWO (CCBWO)，可获得超过108的信噪比。利用微光刻技术在超薄铝膜上穿孔，证明了在a<<λ范围内，透射率与孔尺寸与入射波长之比的4次方成正比，符合Bethe的期望。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2011 International Conference on Infrared, Millimeter, and Terahertz Waves

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