CaltechAUTHORS
  A Caltech Library Service

Design of antenna-coupled lumped-element titanium nitride KIDs for long-wavelength multi-band continuum imaging

Ji, C. and Beyer, A. and Golwala, S. and Sayers, J. (2014) Design of antenna-coupled lumped-element titanium nitride KIDs for long-wavelength multi-band continuum imaging. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII. Proceedings of SPIE. No.9153. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 915321. ISBN 978-0-8194-9621-8. https://resolver.caltech.edu/CaltechAUTHORS:20150615-091403448

[img] PDF - Published Version
See Usage Policy.

515Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20150615-091403448

Abstract

Many applications in cosmology and astrophysics at millimeter wavelengths — CMB polarization, studies of galaxy clusters using the Sunyaev-Zeldovich effect, studies of star formation at high redshift and in our local universe and our galaxy— require large-format arrays of millimeter-wave detectors. Feedhorn, lens-coupled twinslot antenna, and phased-array antenna architectures for receiving mm-wave light present numerous advantages for control of systematics and for simultaneous coverage of both polarizations and/or multiple spectral bands. Simultaneously, kinetic inductance detectors using high-resistivity materials like titanium nitride are an attractive sensor option for large-format arrays because they are highly multiplexable and because their high responsivity can render two-level-system noise subdominant to photon and recombination noise. However, coupling the two is a challenge because of the impedance mismatch between the microstrip exiting these architectures and the high resistivity of titanium nitride. Mitigating direct absorption in the KID is also a challenge. We present a detailed titanium nitride KID design that addresses these challenges. The KID inductor is capacitively coupled to the microstrip in such a way as to form a lossy termination without creating an impedance mismatch. A parallelplate capacitor design mitigates direct absorption, uses hydrogenated amorphous silicon, and yields acceptable two-level-system noise. We show that an optimized design can yield expected sensitivities very close to the fundamental limit from photon and recombination noises for two relevant examples: single spectral band designs appropriate for 90 and 150 GHz for CMB polarization and a multi-spectral-band design that covers 90 GHz to 405 GHz in six bands for SZ effect studies.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.2056777DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1891546PublisherArticle
ORCID:
AuthorORCID
Golwala, S.0000-0002-1098-7174
Sayers, J.0000-0002-8213-3784
Additional Information:© 2014 SPIE. This work has been supported by the California Institute of Technology, the Norris Foundation, the JPL Research and Technology Development Fund, and the NASA SAT program. We thank the following colleagues for useful discussions and advice: M. Kenyon, R. LeDuc, C. McKenney, E. Shirokoff, and J. Zmuidzinas.
Funders:
Funding AgencyGrant Number
CaltechUNSPECIFIED
Kenneth T. and Eileen L. Norris FoundationUNSPECIFIED
JPL Research and Technology Development FundUNSPECIFIED
NASAUNSPECIFIED
Subject Keywords:sensors, low-temperature detectors, bolometers, submillimeter-wave and millimeter-wave receivers and detectors, kinetic inductance detectors, radio telescopes and instrumentation
Series Name:Proceedings of SPIE
Issue or Number:9153
Record Number:CaltechAUTHORS:20150615-091403448
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150615-091403448
Official Citation:C. Ji ; A. Beyer ; S. Golwala ; J. Sayers; Design of antenna-coupled lumped-element titanium nitride KIDs for long-wavelength multi-band continuum imaging. Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 915321 (July 23, 2014); doi:10.1117/12.2056777
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58236
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Jun 2015 17:57
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page