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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI

DOI: 10.1117/12.926223

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MAKO: a pathfinder instrument for on-sky demonstration of low-cost 350 micron imaging arrays

Journal article published in 2012 by Loren J. Swenson, Peter K. Day, Charles D. Dowell, Byeong H. Eom, Matthew I. Hollister, Robert Jarnot, Attila Kovács ORCID, Henry G. LeDuc, Christopher M. McKenney, Ryan Monroe, Tony Mroczkowski ORCID, Hien T. Nguyen, Jonas Zmuidzinas
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Submillimeter cameras now have up to 10^4 pixels (SCUBA 2). The proposed CCAT 25-meter submillimeter telescope will feature a 1 degree field-of-view. Populating the focal plane at 350 microns would require more than 10^6 photon-noise limited pixels. To ultimately achieve this scaling, simple detectors and high-density multiplexing are essential. We are addressing this long-term challenge through the development of frequency-multiplexed superconducting microresonator detector arrays. These arrays use lumped-element, direct-absorption resonators patterned from titanium nitride films. We will discuss our progress toward constructing a scalable 350 micron pathfinder instrument focusing on fabrication simplicity, multiplexing density, and ultimately a low per-pixel cost.