Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Kana Sakaguri, Masaya Hasegawa, Yuki Sakurai, Junna Sugiyama, Nicole Farias | Summary: We developed a broadband two-layer anti-reflection (AR) coating for use on a sapphire half-wave plate (HWP) and an alumina infrared (IR) filter for the cosmic microwave background (CMB) polarimetry. Measuring the faint CMB B-mode signals […]
Continue.. Anti-reflection coating with mullite and Duroid for large-diameter cryogenic sapphire and alumina optics