Silicon-based antenna-coupled polarization-sensitive millimeter-wave bolometer arrays for cosmic microwave background instruments

Karwan Rostem; Aamir Ali; John W. Appel; Charles L. Bennett; Ari Brown; Meng-Ping Chang; David T. Chuss; Felipe A. Colazo; Nick Costen; Kevin L. Denis; Tom Essinger-Hileman; Ron Hu; Tobias A. Marriage; Samuel H. Moseley; Thomas R. Stevenson; Kongpop U-Yen; Edward J. Wollack; Zhilei Xu

doi:10.1117/12.2234308

27 July 2016 Silicon-based antenna-coupled polarization-sensitive millimeter-wave bolometer arrays for cosmic microwave background instruments

Karwan Rostem, Aamir Ali, John W. Appel, Charles L. Bennett, Ari Brown, Meng-Ping Chang, David T. Chuss, Felipe A. Colazo, Nick Costen, Kevin L. Denis, Tom Essinger-Hileman, Ron Hu, Tobias A. Marriage, Samuel H. Moseley, Thomas R. Stevenson, Kongpop U-Yen, Edward J. Wollack, Zhilei Xu

Author Affiliations +

Proceedings Volume 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII; 99140D (2016) https://doi.org/10.1117/12.2234308
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We describe feedhorn-coupled polarization-sensitive detector arrays that utilize monocrystalline silicon as the dielectric substrate material. Monocrystalline silicon has a low-loss tangent and repeatable dielectric constant, characteristics that are critical for realizing efficient and uniform superconducting microwave circuits. An additional advantage of this material is its low specific heat. In a detector pixel, two Transition-Edge Sensor (TES) bolometers are antenna-coupled to in-band radiation via a symmetric planar orthomode transducer (OMT). Each orthogonal linear polarization is coupled to a separate superconducting microstrip transmission line circuit. On-chip filtering is employed to both reject out-of-band radiation from the upper band edge to the gap frequency of the niobium superconductor, and to flexibly define the bandwidth for each TES to meet the requirements of the application. The microwave circuit is compatible with multi-chroic operation. Metalized silicon platelets are used to define the backshort for the waveguide probes. This micro-machined structure is also used to mitigate the coupling of out-of-band radiation to the microwave circuit. At 40 GHz, the detectors have a measured efficiency of ∼90%. In this paper, we describe the development of the 90 GHz detector arrays that will be demonstrated using the Cosmology Large Angular Scale Surveyor (CLASS) ground-based telescope.

Citation Download Citation

Karwan Rostem, Aamir Ali, John W. Appel, Charles L. Bennett, Ari Brown, Meng-Ping Chang, David T. Chuss, Felipe A. Colazo, Nick Costen, Kevin L. Denis, Tom Essinger-Hileman, Ron Hu, Tobias A. Marriage, Samuel H. Moseley, Thomas R. Stevenson, Kongpop U-Yen, Edward J. Wollack, and Zhilei Xu "Silicon-based antenna-coupled polarization-sensitive millimeter-wave bolometer arrays for cosmic microwave background instruments", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 99140D (27 July 2016); https://doi.org/10.1117/12.2234308

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available