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Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD

Journal Article · · Journal of Low Temperature Physics
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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.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Japan Society for the Promotion of Science (JSPS)
Contributing Organization:
LiteBIRD Team
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1490487
Alternate ID(s):
OSTI ID: 1526523
Journal Information:
Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 193; ISSN 0022-2291
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection journal February 2019
Constraining primordial non-Gaussianity using two galaxy surveys and CMB lensing journal August 2019
Constraining primordial non-Gaussianity using two galaxy surveys and CMB lensing text January 2019

Figures / Tables (11)


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