13 May 2015 MCT as sub-terahertz and infrared detector
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Development of infrared and sub-terahertz radiation detectors at the same sensitive elements on the base of mercurycadmium- telluride (MCT) is reported. Two-color un-cooled and cooled to 78 K narrow-gap MCT semiconductor thin layers, grown by liquid phase epitaxy or molecular beam epitaxy method on high resistivity CdZnTe or GaAs substrates, with bow-type antennas were considered both as sub-terahertz direct detection bolometers and 3 to 10 μm infrared photoconductors. Their room temperature noise equivalent power (NEP) at frequency ~ 140 GHz and signal-to-noise ratio (S/N) in the spectral sensitivity maximum under the monochromatic (spectral resolution of ~0.1 μm) globar illumination were reached NEP ~4.5*10-10 W/Hz1/2 and S/N~50, respectively.
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Fiodor F. Sizov, Fiodor F. Sizov, Vyacheslav V. Zabudsky, Vyacheslav V. Zabudsky, Sergey A. Dvoretsky, Sergey A. Dvoretsky, Vladimir A. Petryiakov, Vladimir A. Petryiakov, Aleksandr G. Golenkov, Aleksandr G. Golenkov, Katerina V. Andreyeva, Katerina V. Andreyeva, Zinoviia F. Tsybrii, Zinoviia F. Tsybrii, Anna V. Shevchik-Shekera, Anna V. Shevchik-Shekera, Ernesto Dieguez, Ernesto Dieguez, "MCT as sub-terahertz and infrared detector", Proc. SPIE 9483, Terahertz Physics, Devices, and Systems IX: Advanced Applications in Industry and Defense, 94830V (13 May 2015); doi: 10.1117/12.2176854; https://doi.org/10.1117/12.2176854

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