Design of 280 GHz feedhorn-coupled TES arrays for the balloon-borne polarimeter SPIDER

Johannes Hubmayr; Jason E. Austermann; James A. Beall; Daniel T. Becker; Steven J. Benton; A. Stevie Bergman; J. Richard Bond; Sean Bryan; Shannon M. Duff; Adri J. Duivenvoorden; H. K. Eriksen; Jeffrey P. Filippini; A. Fraisse; Mathew Galloway; Anne E. Gambrel; K. Ganga; Arpi L. Grigorian; Riccardo Gualtieri; Jon E. Gudmundsson; John W. Hartley; M. Halpern; Gene C. Hilton; William C. Jones; Jeffrey J. McMahon; Lorenzo Moncelsi; Johanna M. Nagy; C. B. Netterfield; Benjamin Osherson; Ivan Padilla; Alexandra S. Rahlin; B. Racine; John Ruhl; T. M. Rudd; J. A. Shariff; J. D. Soler; Xue Song; Joel N. Ullom; Jeff Van Lanen; Michael R. Vissers; I. K. Wehus; Shyang Wen; D. V. Wiebe; Edward Young

doi:10.1117/12.2231896

19 July 2016 Design of 280 GHz feedhorn-coupled TES arrays for the balloon-borne polarimeter SPIDER

Johannes Hubmayr, Jason E. Austermann, James A. Beall, Daniel T. Becker, Steven J. Benton, A. Stevie Bergman, J. Richard Bond, Sean Bryan, Shannon M. Duff, Adri J. Duivenvoorden, H. K. Eriksen, Jeffrey P. Filippini, A. Fraisse, Mathew Galloway, Anne E. Gambrel, K. Ganga, Arpi L. Grigorian, Riccardo Gualtieri, Jon E. Gudmundsson, John W. Hartley, M. Halpern, Gene C. Hilton, William C. Jones, Jeffrey J. McMahon, Lorenzo Moncelsi, Johanna M. Nagy, C. B. Netterfield, Benjamin Osherson, Ivan Padilla, Alexandra S. Rahlin, B. Racine, John Ruhl, T. M. Rudd, J. A. Shariff, J. D. Soler, Xue Song, Joel N. Ullom, Jeff Van Lanen, Michael R. Vissers, I. K. Wehus, Shyang Wen, D. V. Wiebe, Edward Young

Author Affiliations +

Proceedings Volume 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII; 99140V (2016) https://doi.org/10.1117/12.2231896
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We describe 280 GHz bolometric detector arrays that instrument the balloon-borne polarimeter spider. A primary science goal of spider is to measure the large-scale B-mode polarization of the cosmic microwave background (cmb) in search of the cosmic-inflation, gravitational-wave signature. 280 GHz channels aid this science goal by constraining the level of B-mode contamination from galactic dust emission. We present the focal plane unit design, which consists of a 16x16 array of conical, corrugated feedhorns coupled to a monolithic detector array fabricated on a 150 mm diameter silicon wafer. Detector arrays are capable of polarimetric sensing via waveguide probe-coupling to a multiplexed array of transition-edge-sensor (TES) bolometers. The spider receiver has three focal plane units at 280 GHz, which in total contains 765 spatial pixels and 1,530 polarization sensitive bolometers. By fabrication and measurement of single feedhorns, we demonstrate 14.7° FHWM Gaussian-shaped beams with <1% ellipticity in a 30% fractional bandwidth centered at 280 GHz. We present electromagnetic simulations of the detection circuit, which show 94% band-averaged, single-polarization coupling efficiency, 3% reflection and 3% radiative loss. Lastly, we demonstrate a low thermal conductance bolometer, which is well-described by a simple TES model and exhibits an electrical noise equivalent power (NEP) = 2.6 x 10^-17 W/√Hz, consistent with the phonon noise prediction.

Citation Download Citation

Johannes Hubmayr, Jason E. Austermann, James A. Beall, Daniel T. Becker, Steven J. Benton, A. Stevie Bergman, J. Richard Bond, Sean Bryan, Shannon M. Duff, Adri J. Duivenvoorden, H. K. Eriksen, Jeffrey P. Filippini, A. Fraisse, Mathew Galloway, Anne E. Gambrel, K. Ganga, Arpi L. Grigorian, Riccardo Gualtieri, Jon E. Gudmundsson, John W. Hartley, M. Halpern, Gene C. Hilton, William C. Jones, Jeffrey J. McMahon, Lorenzo Moncelsi, Johanna M. Nagy, C. B. Netterfield, Benjamin Osherson, Ivan Padilla, Alexandra S. Rahlin, B. Racine, John Ruhl, T. M. Rudd, J. A. Shariff, J. D. Soler, Xue Song, Joel N. Ullom, Jeff Van Lanen, Michael R. Vissers, I. K. Wehus, Shyang Wen, D. V. Wiebe, and Edward Young "Design of 280 GHz feedhorn-coupled TES arrays for the balloon-borne polarimeter SPIDER", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 99140V (19 July 2016); https://doi.org/10.1117/12.2231896

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