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astro-ph.IM2025
Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens
Shaul Hanany, Scott Cray, Samuel Dietterich +12
We used laser ablation to fabricate sub-wavelength structure anti-reflection coating (SWS-ARC) on a 5 cm diameter alumina lens. With an aspect ratio of 2.5, the SWS-ARC are designe…
astro-ph.IM2025
Prototype sub-wavelength structure anti-reflection coating on alumina filters for ground-based CMB telescopes
Kosuke Aizawa, Ryosuke Akizawa, Scott Cray +8
We present designs and fabrication of sub-wavelength anti-reflection (AR) structures on alumina for infrared absorptive filters with passbands near 30, 125, and 250 GHz. These band…