Superconducting integrated THz receivers: development and applications

Valery P. Koshelets; Andrey B. Ermakov; Lyudmila V. Filippenko; Nickolay V. Kinev; Oleg S. Kiselev; Mikhail Yu. Torgashin; Arno de Lange; Gert de Lange; Sergey I. Pripolzin; Vladimir L. Vaks

doi:10.1117/12.868916

4 November 2010 Superconducting integrated THz receivers: development and applications

Valery P. Koshelets, Andrey B. Ermakov, Lyudmila V. Filippenko, Nickolay V. Kinev, Oleg S. Kiselev, Mikhail Yu. Torgashin, Arno de Lange, Gert de Lange, Sergey I. Pripolzin, Vladimir L. Vaks

Author Affiliations +

Proceedings Volume 7854, Infrared, Millimeter Wave, and Terahertz Technologies; 78540J (2010) https://doi.org/10.1117/12.868916
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

A Superconducting Integrated Receiver (SIR) comprises on one chip all elements needed for heterodyne detection: a low-noise SIS mixer with quasioptical antenna, a Flux-Flow Oscillator (FFO) acting as a Local Oscillator (LO) and a second SIS harmonic mixer (HM) for the FFO phase locking. Light weight and low power consumption combined with nearly quantum limited sensitivity and a wide tuning range of the FFO make SIR a perfect candidate for many practical applications. In particular, the SIR developed for novel balloon borne instrument TELIS (TErahertz and submillimeter LImb Sounder) covers frequency range 480 - 650 GHz. As a result of recent receiver's optimization the DSB noise temperature was measured as low as 120 K for the SIR with intermediate frequency (IF) band 4 - 8 GHz. The capability of the SIR for high resolution atmospheric spectroscopy has been successfully proven with scientific balloon flights from Kiruna, North Sweden. Diurnal cycles of ClO and BrO has been observed with BrO line level of only about 0.5 K. Possibility to use the SIRs for analysis of the breathed out air at medical survey has been demonstrated.

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Valery P. Koshelets, Andrey B. Ermakov, Lyudmila V. Filippenko, Nickolay V. Kinev, Oleg S. Kiselev, Mikhail Yu. Torgashin, Arno de Lange, Gert de Lange, Sergey I. Pripolzin, and Vladimir L. Vaks "Superconducting integrated THz receivers: development and applications", Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78540J (4 November 2010); https://doi.org/10.1117/12.868916

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