Kinetic inductance detectors for 200&#956;m astronomy

Simon Doyle; Jack Naylon; James Cox; Philip Mauskopf; Adrian Porch

doi:10.1117/12.670200

27 June 2006 Kinetic inductance detectors for 200μm astronomy

Simon Doyle, Jack Naylon, James Cox, Philip Mauskopf, Adrian Porch

Proceedings Volume 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III; 62751O (2006) https://doi.org/10.1117/12.670200
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Kinetic inductance detectors (KIDs) provide an attractive solution to the production of large detector arrays for use in ground and space based 200μm astronomy. KIDs work by measuring the change in quasi-particle density upon photon absorption in a high Q superconducting resonator. A change in quasi-particle density is measured by a shift in phase of a microwave probe signal of frequency equal to that of the resonant frequency of the KID. Such detectors have a fundamental noise limit owing to the quasi-particle recombination rate, which, in a KID fabricated from a high quality Niobium film can give sensitivities of 10^-18W√Hz at 1K. Constructing KIDs of varying resonant frequencies coupled to a single transmission line provides a multiplexed detector array with simple low temperature electronics. Here we discuss the theoretical requirements for both ground and space based 200μm cameras with various radiation coupling schemes for this wavelength range using distributed and lumped element high Q resonators.

Citation Download Citation

Simon Doyle, Jack Naylon, James Cox, Philip Mauskopf, and Adrian Porch "Kinetic inductance detectors for 200μm astronomy", Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 62751O (27 June 2006); https://doi.org/10.1117/12.670200

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