Low-noise THz-range Nb based SIS Receivers for Radio Astronomy
| Autor: | Ronald Hesper, Lyudmila V. Filippenko, Valery P. Koshelets, A. Khudchenko, Pavel N. Dmitriev, Andrey M. Baryshev, K. I. Rudakov |
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| Rok vydání: | 2020 |
| Předmět: |
Heterodyne
Physics Noise temperature Fabrication 010504 meteorology & atmospheric sciences Sideband business.industry Terahertz radiation 01 natural sciences Quality (physics) 0103 physical sciences Range (statistics) Optoelectronics business 010303 astronomy & astrophysics 0105 earth and related environmental sciences Radio astronomy |
| Zdroj: | 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| Popis: | This repost describes our results on development of low-noise heterodyne THz receivers for ground based and space radio astronomy. Superconductor-insulator-superconductor (SIS) mixers that employ high quality Nb-based tunnel junctions are the key element of the most sensitive heterodyne THz receivers. In particular we present here the SIS receivers for frequency range 211–275 GHz and 800–950 GHz with double sideband (DSB) noise temperature of about 25 K and 220 K, respectively. The latest results on development, fabrication techniques and experimental study of the SIS receivers will be discussed. |
| Databáze: | OpenAIRE |
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