Share Email Print
cover

Proceedings Paper

Optimization of MKID noise performance via readout technique for astronomical applications
Author(s): Nicole G. Czakon; James A. Schlaerth; Peter K. Day; Thomas P. Downes; Ran P. Duan; Jiansong Gao; Jason Glenn; Sunil R. Golwala; Matt I. Hollister; Henry G. LeDuc; Benjamin A. Mazin; Philip R. Maloney; Omid Noroozian; Hien T. Nguyen; Jack Sayers; Seth Siegel; John E. Vaillancourt; Anastasios Vayonakis; Philip R. Wilson; Jonas Zmuidzinas
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Detectors employing superconducting microwave kinetic inductance detectors (MKIDs) can be read out by measuring changes in either the resonator frequency or dissipation. We will discuss the pros and cons of both methods, in particular, the readout method strategies being explored for the Multiwavelength Sub/millimeter Inductance Camera (MUSIC) to be commissioned at the CSO in 2010. As predicted theoretically and observed experimentally, the frequency responsivity is larger than the dissipation responsivity, by a factor of 2-4 under typical conditions. In the absence of any other noise contributions, it should be easier to overcome amplifier noise by simply using frequency readout. The resonators, however, exhibit excess frequency noise which has been ascribed to a surface distribution of two-level fluctuators sensitive to specific device geometries and fabrication techniques. Impressive dark noise performance has been achieved using modified resonator geometries employing interdigitated capacitors (IDCs). To date, our noise measurement and modeling efforts have assumed an onresonance readout, with the carrier power set well below the nonlinear regime. Several experimental indicators suggested to us that the optimal readout technique may in fact require a higher readout power, with the carrier tuned somewhat off resonance, and that a careful systematic study of the optimal readout conditions was needed. We will present the results of such a study, and discuss the optimum readout conditions as well as the performance that can be achieved relative to BLIP.

Paper Details

Date Published: 15 July 2010
PDF: 8 pages
Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77410Q (15 July 2010); doi: 10.1117/12.857866
Show Author Affiliations
Nicole G. Czakon, California Institute of Technology (United States)
James A. Schlaerth, Univ. of Colorado at Boulder (United States)
Peter K. Day, Jet Propulsion Lab. (United States)
Thomas P. Downes, California Institute of Technology (United States)
Ran P. Duan, California Institute of Technology (United States)
Jiansong Gao, National Institute of Standards and Technology (United States)
Jason Glenn, Univ. of Colorado at Boulder (United States)
Sunil R. Golwala, California Institute of Technology (United States)
Matt I. Hollister, California Institute of Technology (United States)
Henry G. LeDuc, Jet Propulsion Lab. (United States)
Benjamin A. Mazin, Univ. of California, Santa Barbara (United States)
Philip R. Maloney, Univ. of Colorado at Boulder (United States)
Omid Noroozian, California Institute of Technology (United States)
Hien T. Nguyen, Jet Propulsion Lab. (United States)
Jack Sayers, Jet Propulsion Lab. (United States)
Seth Siegel, California Institute of Technology (United States)
John E. Vaillancourt, Stratospheric Observatory for Infrared Astronomy (United States)
Anastasios Vayonakis, California Institute of Technology (United States)
Philip R. Wilson, Jet Propulsion Lab. (United States)
Jonas Zmuidzinas, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7741:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

© SPIE. Terms of Use
Back to Top