Journal
JOURNAL OF LOW TEMPERATURE PHYSICS
Volume 193, Issue 3-4, Pages 96-102Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-018-1962-8
Keywords
Kinetic inductance detectors; Kilo-pixel array; THz astronomy
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Funding
- European Commission [313320, SPA.2012.2.2-01]
- ERC consolidator Grant ERC-CoG-2014 [648135]
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We present the development of a background-limited kilo-pixel imaging array of ultrawide bandwidth kinetic inductance detectors (KIDs) suitable for space-based THz astronomy applications. The array consists of 989 KIDs, in which the radiation is coupled to each KID via a leaky lens antenna, covering the frequency range between 1.4 and 2.8THz. The single pixel performance is fully characterised using a representative small array in terms of sensitivity, optical efficiency, beam pattern and frequency response, matching very well its expected performance. The kilo-pixel array is characterised electrically, finding a yield larger than 90% and an averaged noise-equivalent power lower than The interaction between the kilo-pixel array and cosmic rays is studied, with an expected dead time lower than 0.6% when operated in an L2 or a similar far-Earth orbit.
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