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Optical and thermal properties of ANL/KICP polarization sensitive bolometers for SPTpol

Chang, C. L., Ade, Peter A. R., Aird, K., Austermann, J., Beall, J., Becker, D., Benson, B., Bleem, L., Britton, J., Carlstrom, J., Cho, H., Haan, T., Crawford, T., Crites, A., Datesman, A., Dobbs, M., Everett, W., Ewall-Wice, A., George, E., Halverson, N., Harrington, N., Henning, J., Hilton, G., Holzapfel, W., Hoover, S., Hubmayr, J., Irwin, K., Keisler, R., Kennedy, J., Lee, A., Leitch, E., Li, D., Lueker, M., Marrone, D. P., Mcmahon, J., Mehl, J., Meyer, S., Montgomery, J., Montroy, T., Natoli, T., Nibarger, J., Niemack, M., Novosad, V., Padin, S., Pryke, C., Reichardt, C., Ruhl, J., Saliwanchik, B., Sayre, J., Schafer, K., Shirokoff, E., Story, K., Vanderlinde, K., Vieira, J., Wang, G., Williamson, R., Yefremenko, V., Yoon, K. W. and Young, E. 2012. Optical and thermal properties of ANL/KICP polarization sensitive bolometers for SPTpol. Journal of Low Temperature Physics 167 (5-6) , pp. 865-871. 10.1007/s10909-012-0491-0

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We present recent optical and thermal characterizations of polarization sensitive mm-wave bolometers fabricated at Argonne National Lab. The devices are designed to measure the polarization of the Cosmic Microwave Background and consist of a Mo/Au TES suspended on SiN with a Pd-Au dipole absorber. The detector performance is excellent with >85% co-polar coupling, <1% cross-polar leakage, 36 GHz optical bandwidth, electrothermal loop gains of approximately 10, and NEP ≃50 aW Hz−1/2.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Uncontrolled Keywords: Transition edge sensors ; Bolometers ; CMB
Publisher: SpringerLink
ISSN: 0022-2291
Last Modified: 04 Jun 2017 04:11

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