Optical characterization of aluminum-based 280 GHz CCAT MKID pixels and arrays

Anna K. Vaskuri; Jordan D. Wheeler; Jason E. Austermann; Michael R. Vissers; James A. Beall; James Burgoyne; Victoria Butler; Scott Chapman; Steve K. Choi; Abigail Crites; Cody Duell; Rodrigo Freundt; Anthony Huber; Zachary B. Huber; Johannes Hubmayr; Lawrence Lin; Alicia Middleton; Michael D. Niemack; Thomas Nikola; Douglas Scott; Adrian Sinclair; Ema Smith; Gordon Stacey; Joel Ullom; Jeffrey van Lanen; Eve Vavagiakis; Samantha Walker; Bugao Zou

doi:10.1117/12.3017858

17 August 2024 Optical characterization of aluminum-based 280 GHz CCAT MKID pixels and arrays

Anna K. Vaskuri, Jordan D. Wheeler, Jason E. Austermann, Michael R. Vissers, James A. Beall, James Burgoyne, Victoria Butler, Scott Chapman, Steve K. Choi, Abigail Crites, Cody Duell, Rodrigo Freundt, Anthony Huber, Zachary B. Huber, Johannes Hubmayr, Lawrence Lin, Alicia Middleton, Michael D. Niemack, Thomas Nikola, Douglas Scott, Adrian Sinclair, Ema Smith, Gordon Stacey, Joel Ullom, Jeffrey van Lanen, Eve Vavagiakis, Samantha Walker, Bugao Zou

Author Affiliations +

Proceedings Volume PC13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; PC131020E (2024) https://doi.org/10.1117/12.3017858
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

We present the first full-array optical characterizations of the 280 GHz aluminum-based superconducting microwave kinetic inductance detector (MKID) arrays developed at NIST, CO, USA for the CCAT Collaboration for observing galactic ecology, Sunyaev-Zel'dovich effect, galaxy evolution, and line intensity mapping. The main advantage of aluminum MKIDs is their lower 1/f noise compared to the alternative choice of titanium-nitride (TiN) MKIDs, which would reduce systematic drifts when mapping the sky. We will present the spectral response, polarization characteristics, detector efficiency, and noise equivalent power (NEP) under the relevant conditions for these detectors. Two aluminum and one TiN MKID arrays will form the detector arrays in the 280 GHz instrument module of the Prime-Cam. First light observations are expected in 2025.

Conference Presentation

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Anna K. Vaskuri, Jordan D. Wheeler, Jason E. Austermann, Michael R. Vissers, James A. Beall, James Burgoyne, Victoria Butler, Scott Chapman, Steve K. Choi, Abigail Crites, Cody Duell, Rodrigo Freundt, Anthony Huber, Zachary B. Huber, Johannes Hubmayr, Lawrence Lin, Alicia Middleton, Michael D. Niemack, Thomas Nikola, Douglas Scott, Adrian Sinclair, Ema Smith, Gordon Stacey, Joel Ullom, Jeffrey van Lanen, Eve Vavagiakis, Samantha Walker, and Bugao Zou "Optical characterization of aluminum-based 280 GHz CCAT MKID pixels and arrays", Proc. SPIE PC13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, PC131020E (17 August 2024); https://doi.org/10.1117/12.3017858

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