窄间隙MCT作为太赫兹探测器

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON) Pub Date : 2016-05-09 DOI:10.1109/MIKON.2016.7492016

F. Sizov, V. Dobrovolski, Z. Tsybrii, V. Zabudsky, S. Dvoretskii, N. Mikhailov

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引用次数: 3

摘要

研究了直接探测mm/亚mm波暖载流子双极窄间隙Hg1−xCdxTe半导体热辐射计，该热辐射计可作为太赫兹敏感阵列中的敏感元件。在T=68 ~ 300 K的ν=0.037 ~ 1.54 THz频率范围内，测量了Hg1−xCdxTe热电子辐射热计的响应。在探测器(测热计)中，电磁波加热那里的电子和空穴，产生它们的过量浓度，以及电动势。这些影响引起测热计的响应电压。在辐射频率ν=140 GHz时，噪声等效功率可达ne300k ~ 2.5×10−10 W/Hz1/2。

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Narrow-gap MCT as THz detector

Direct detection mm/sub-mm wave warm-carrier bipolar narrow-gap Hg1−xCdxTe semiconductor bolometers that can be used as sensitive elements in THz sensitive arrays, are considered. The response of Hg1−xCdxTe warm-electron bolometer was measured in ν=0.037−1.54 THz frequency range at T=68-300 K. In the detector (bolometer) considered the electromagnetic wave heats electrons and holes there, creates their excess concentrations, as well as, the electromotive force. These effects cause the bolometer response voltage. The noise equivalent power can reach NEP300K∼2.5×10−10 W/Hz1/2 at radiation frequency ν=140 GHz.

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来源期刊

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON)

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