Design optimization of a 10 kilopixel optical band Microwave Kinetic Inductance Detector

Mehdi Shafiee, B. Grossan, J. Hu, I. Colantoni, George F. Smoot

2019

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DOI 10.1088/1748-0221/14/12/p12011
Data confidence 70 medium
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Abstract

In order to make improved spectral imaging measurements in the ultraviolet, visible and near infrared bands, we investigated the design of a 10 kilopixel Microwave Kinetic Inductance Detector (MKID) sensitive in these bands. We evaluate design parameters for MKIDs arrays with equally spaced resonant frequencies and high intrinsic and coupling quality factors. Resonance frequencies were chosen in the range of 2.8–4.8 GHz with an average of 2 MHz intervals. We describe the optimization of our design, including reduced cross-coupling. Through simulations, we find the average intrinsic and coupling quality factors to be on the order of 10 7 and 3 × 10 4 respectively, which are good enough for our purposes.