Anti-reflection coating of large-format lenses for sub-mm applications

Peter C. Hargrave; Giorgio Savini

doi:10.1117/12.856919

15 July 2010 Anti-reflection coating of large-format lenses for sub-mm applications

Peter C. Hargrave, Giorgio Savini

Proceedings Volume 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V; 77410S (2010) https://doi.org/10.1117/12.856919
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

We have recently developed a repeatable and reliable technique for anti-reflection coating large lenses, suitable for use at sub-mm wavelengths. Small lenses have been coated using this technique, and are currently flying on-board Herschel- SPIRE and Planck-HFI. We have recently coated much larger, highly-curved lenses (up to 380 mm diameter) for the EBEX and Polarbear cosmic microwave background (CMB) experiments. In this paper, we present details of the coating technique, experimental results of coated samples, and comparison of the results to theoretical predictions. We also present an indication of their technology readiness level (TRL) for future space applications such as B-Pol.

Citation Download Citation

Peter C. Hargrave and Giorgio Savini "Anti-reflection coating of large-format lenses for sub-mm applications", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77410S (15 July 2010); https://doi.org/10.1117/12.856919

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