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David P. Pappas, Jiansong Gao, Benjamin Mazin, Daniel Sank, Erik Lucero, John M. Martinis, Andrew Merrill, Sunil Golwala, David Moore, Jonas Zmuidzinas
Abstract
Microwave Kinetic Inductance Detectors, or MKIDs, are a type of low temperature detector that exhibit intrinsic frequency domain multiplexing at microwave frequencies. We present theory and measurements on a new type of MKID based on a microstrip transmission line resonator. A microstrip line made with a deposited dielectric gives signi cant exibility in fabrication, and should enable detector arrays with very high ll factors by hiding the resonators on top or under an absorber. A complete characterization of the dielectric loss and noise properties of these resonators is performed, and agrees well with the derived theory. A competitive NEP of 51017 W Hz1=2 at 1 Hz has been demonstrated. The resonators exhibit the highest quality factors known in a microstrip resonator with a deposited thin lm dielectric.
Pappas, D.
, Gao, J.
, Mazin, B.
, Sank, D.
, Lucero, E.
, Martinis, J.
, Merrill, A.
, Golwala, S.
, Moore, D.
and Zmuidzinas, J.
(2010),
Thin lm dielectric microstrip kinetic inductance detectors, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904363
(Accessed October 11, 2025)