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Proceedings Article

Fabrication of an absorber-coupled MKID detector and readout for sub-millimeter and far-infrared astronomy

[+] Author Affiliations
Ari-David Brown

NASA Goddard Space Flight Ctr. (USA) and MEI Technologies, Inc. (USA)

Wen-Ting Hsieh, S. Harvey Moseley, Thomas R. Stevenson, Kongpop U-yen, Edward J. Wollack

NASA Goddard Space Flight Ctr. (USA)

Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77410P (July 15, 2010); doi:10.1117/12.857281
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From Conference Volume 7741

  • Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
  • Wayne S. Holland; Jonas Zmuidzinas
  • San Diego, California, USA | June 27, 2010

abstract

We have fabricated absorber-coupled microwave kinetic inductance detector (MKID) arrays for sub-millimeter and farinfrared astronomy. Each detector array is comprised of λ/2 stepped impedance resonators, a 1.5μm thick silicon membrane, and 380μm thick silicon walls. The resonators consist of parallel plate aluminum transmission lines coupled to low impedance Nb microstrip traces of variable length, which set the resonant frequency of each resonator. This allows for multiplexed microwave readout and, consequently, good spatial discrimination between pixels in the array. The Al transmission lines simultaneously act to absorb optical power and are designed to have a surface impedance and filling fraction so as to match the impedance of free space. Our novel fabrication techniques demonstrate high fabrication yield of MKID arrays on large single crystal membranes and sub-micron front-to-back alignment of the microstrip circuit.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Ari-David Brown ; Wen-Ting Hsieh ; S. Harvey Moseley ; Thomas R. Stevenson ; Kongpop U-yen, et al.
"Fabrication of an absorber-coupled MKID detector and readout for sub-millimeter and far-infrared astronomy", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77410P (July 15, 2010); doi:10.1117/12.857281; http://dx.doi.org/10.1117/12.857281


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