Hasebe, T., Kashima, S., Ade, Peter A. R. ![]() ![]() |
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Abstract
The high-frequency telescope for LiteBIRD is designed with refractive and reflective optics. In order to improve sensitivity, this paper suggests the new optical configurations of the HFT which have approximately 7 times larger focal planes than that of the original design. The sensitivities of both the designs are compared, and the requirement of anti-reflection (AR) coating on the lens for the refractive option is derived. We also present the simulation result of a sub-wavelength AR structure on both surfaces of silicon, which shows a band-averaged reflection of 1.1–3.2% at 101–448 GHz.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Publisher: | Springer Verlag (Germany) |
ISSN: | 0022-2291 |
Date of First Compliant Deposit: | 29 May 2018 |
Date of Acceptance: | 7 April 2018 |
Last Modified: | 29 Nov 2024 13:15 |
URI: | https://orca.cardiff.ac.uk/id/eprint/111802 |
Citation Data
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