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Title: Distributed antenna-coupled TES for FIR detectors arrays
Authors: Day, Peter K.
Leduc, Henry G.
Dowell, C. Darren
Lee, Richard A.
Zmuidzinas, Jonas
Keywords: Transition Edge Sensor (TES)
far infrared (FIR) detector
Issue Date: 22-Jul-2007
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007.
Citation: 12 International Workshop on Low Temperature Detectors (LTD12), Paris, France, July 22-27, 2009.
Abstract: We describe a new architecture for a superconducting detector for the submillimeter and far-infrared. This detector uses a distributed hot-electron transition edge sensor (TES) to collect the power from a focal-plane-filling slot antenna array. The sensors lay directly across the slots of the antenna and match the antenna impedance of about 30 ohms. Each pixel contains many sensors that are wired in parallel as a single distributed TES, which results in a low impedance that readily matches to a multiplexed SQUID readout These detectors are inherently polarization sensitive, with very low cross-polarization response, but can also be configured to sum both polarizations. The dual-polarization design can have a bandwidth of 50The use of electron-phonon decoupling eliminates the need for micro-machining, making the focal plane much easier to fabricate than with absorber-coupled, mechanically isolated pixels. We discuss applications of these detectors and a hybridization scheme compatible with arrays of tens of thousands of pixels
Appears in Collections:JPL TRS 1992+

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