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Proceedings Paper

Optical lumped element microwave kinetic inductance detectors
Author(s): Danica Marsden; Benjamin A. Mazin; Bruce Bumble; Seth Meeker; Kieran O'Brien; Sean McHugh; Matthew Strader; Eric Langman
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Paper Abstract

Microwave Kinetic Inductance Detectors, or MKIDs, have proven to be a powerful cryogenic detector technology due to their sensitivity and the ease with which they can be multiplexed into large arrays. An MKID is an energy sensor based on a photon-variable superconducting inductance in a lithographed microresonator. It is capable of functioning as both a photon detector across the electromagnetic spectrum and a particle detector. We have recently demonstrated the world's first photon-counting, energy-resolving, ultraviolet, optical, and near infrared MKID focal plane array in the ARCONS camera at the Palomar 200" telescope. Optical Lumped Element (OLE) MKID arrays have significant advantages over semiconductor detectors such as charge coupled devices (CCDs). They can count individual photons with essentially no false counts and determine the energy (to a few percent) and arrival time (to ≈1μs) of every photon, with good quantum efficiency. Initial devices were degraded by substrate events from photons passing through the Titanium Nitride (TiN) material of the resonator and being absorbed in the substrate. Recent work has eliminated this issue, with a solution found to be increasing the thickness of the TiN resonator from 20 to 60 nm.

Paper Details

Date Published: 25 September 2012
PDF: 9 pages
Proc. SPIE 8453, High Energy, Optical, and Infrared Detectors for Astronomy V, 84530B (25 September 2012); doi: 10.1117/12.924904
Show Author Affiliations
Danica Marsden, Univ. of California, Santa Barbara (United States)
Benjamin A. Mazin, Univ. of California, Santa Barbara (United States)
Bruce Bumble, Jet Propulsion Lab. (United States)
Seth Meeker, Univ. of California, Santa Barbara (United States)
Kieran O'Brien, Univ. of California, Santa Barbara (United States)
Sean McHugh, Univ. of California, Santa Barbara (United States)
Matthew Strader, Univ. of California, Santa Barbara (United States)
Eric Langman, Univ. of California, Santa Barbara (United States)


Published in SPIE Proceedings Vol. 8453:
High Energy, Optical, and Infrared Detectors for Astronomy V
Andrew D. Holland; James W. Beletic, Editor(s)

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