Application of superconducting hot-electron bolometer mixers for terahertz-band astronomy

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Abstract

Recently, a next-generation heterodyne mixer detector - a hot electron bolometer (HEB) mixer employing a superconducting microbridge-has gradually opened up terahertz-band astronomy. The surrounding state-of-the-art technologies including fabrication processes, 4 K cryostats, cryogenic low-noise amplifiers, local oscillator sources, mi-cromachining techniques, and spectrometers, as well as the HEB mixers, have played a valuable role in the development of super-low-noise heterodyne spectroscopy systems for the terahertz band. The current developmental status of terahertz-band HEB mixer receivers and their applications for spectroscopy and astronomy with ground-based, airborne, and satellite telescopes are presented.

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APA

Maezawa, H. (2015). Application of superconducting hot-electron bolometer mixers for terahertz-band astronomy. IEICE Transactions on Electronics, E98C(3), 196–206. https://doi.org/10.1587/transele.E98.C.196

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