A method for optimal tuning of microwave kinetic inductance detector arrays under dynamic loading conditions

Samantha Walker; Zhiyuan Ma; Michael McCrackan; Jason E. Austermann; James A. Beall; Nat S. DeNigris; Daniel Ferrusca Rodriguez Sr.; Jiansong Gao; Victor Gómez-Rivera; Johannes Hubmayr; Giles A. Novak; Michael D. Niemack; Emmaly Aguilar Perez; Adrian K. Sinclair; Kamal Souccar; Marcial Becerril Tapia; Joel N. Ullom; Jeffrey Van Lanen; Anna K. Vaskuri; Miguel Velázquez; Michael R. Vissers; Jordan D. Wheeler; Grant W. Wilson

doi:10.1117/12.3019161

1 October 2024 A method for optimal tuning of microwave kinetic inductance detector arrays under dynamic loading conditions

Samantha Walker, Zhiyuan Ma, Michael McCrackan, Jason E. Austermann, James A. Beall, Nat S. DeNigris, Daniel Ferrusca Rodriguez Sr., Jiansong Gao, Victor Gómez-Rivera, Johannes Hubmayr, Giles A. Novak, Michael D. Niemack, Emmaly Aguilar Perez, Adrian K. Sinclair, Kamal Souccar, Marcial Becerril Tapia, Joel N. Ullom, Jeffrey Van Lanen, Anna K. Vaskuri, Miguel Velázquez, Michael R. Vissers, Jordan D. Wheeler, Grant W. Wilson

Author Affiliations +

Proceedings Volume PC13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; PC1310202 (2024) https://doi.org/10.1117/12.3019161
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Microwave kinetic inductance detectors (MKIDs) are increasingly used in ground-based (sub)millimeter-wave astronomy experiments. Two existing challenges to operating detector arrays remain in selecting excitation tones for each MKID where there are hundreds of resonators on the same feedline or network and that will yield the best combination of linearity and sensitivity. This is further complicated when operating arrays at ground-based telescopes, where variations in background loading from the atmosphere can induce significant shifts in MKID resonant frequencies and affect quality factors. We describe a quantitative method for optimal tuning of MKID arrays under dynamic loading conditions. We apply this new readout tuning technique to the 1.1 mm MKID array of the TolTEC camera at the Large Millimeter Telescope, where we incrementally change the readout power applied to investigate its effect. We perform in lab optical characterization of a CCAT Observatory MKID array to investigate optimal tuning under different loading conditions.

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Citation Download Citation

Samantha Walker, Zhiyuan Ma, Michael McCrackan, Jason E. Austermann, James A. Beall, Nat S. DeNigris, Daniel Ferrusca Rodriguez Sr., Jiansong Gao, Victor Gómez-Rivera, Johannes Hubmayr, Giles A. Novak, Michael D. Niemack, Emmaly Aguilar Perez, Adrian K. Sinclair, Kamal Souccar, Marcial Becerril Tapia, Joel N. Ullom, Jeffrey Van Lanen, Anna K. Vaskuri, Miguel Velázquez, Michael R. Vissers, Jordan D. Wheeler, and Grant W. Wilson "A method for optimal tuning of microwave kinetic inductance detector arrays under dynamic loading conditions", Proc. SPIE PC13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, PC1310202 (1 October 2024); https://doi.org/10.1117/12.3019161

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