A dual-polarized multichroic antenna-coupled TES bolometer for terrestrial CMB Polarimetry

Roger O'Brient; Peter Ade; Kam Arnold; Jennifer Edwards; Greg Engargiola; William Holzapfel; Adrian T. Lee; Xiao Fan Meng; Michael Myers; Erin Quealy; Gabriel Rebeiz; Paul Richards; Aritoki Suzuki

doi:10.1117/12.857801

15 July 2010 A dual-polarized multichroic antenna-coupled TES bolometer for terrestrial CMB Polarimetry

Roger O'Brient, Peter Ade, Kam Arnold, Jennifer Edwards, Greg Engargiola, William Holzapfel, Adrian T. Lee, Xiao Fan Meng, Michael Myers, Erin Quealy, Gabriel Rebeiz, Paul Richards, Aritoki Suzuki

Author Affiliations +

Proceedings Volume 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V; 77410J (2010) https://doi.org/10.1117/12.857801
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We are developing dual-polarized multi-channel antenna-coupled Transition Edge Sensor (TES) Bolometers for Cosmic Microwave Background (CMB) Polarimetry in terrestrial experiments. Each pixel of the array couples incident power into the lithographed microstrip circuits with a dual-polarized broadband planar sinuous antenna who's gain is increased with a contacting extended hemispherical lens. Microstrip filter manifolds partition the two-octave bandwidth into narrow channels before terminating at separate TES bolometers. We describe the design methodology and fabrication methods used, and also the results of optical tests that show high optical throughput in properly located bands, as well as high cross-polarization rejection. We have explored two antenna feeding schemes that result in different quality beams and we comment on the relative merits of each. Finally, we quantify the increases in mapping speed that an array of our multichroic pixels might realize over traditional monochromatic pixels.

Citation Download Citation

Roger O'Brient, Peter Ade, Kam Arnold, Jennifer Edwards, Greg Engargiola, William Holzapfel, Adrian T. Lee, Xiao Fan Meng, Michael Myers, Erin Quealy, Gabriel Rebeiz, Paul Richards, and Aritoki Suzuki "A dual-polarized multichroic antenna-coupled TES bolometer for terrestrial CMB Polarimetry", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77410J (15 July 2010); https://doi.org/10.1117/12.857801

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