EUV telescope for a Cubesat nanosatellite-Reference-Cited by-同舟云学术

EUV telescope for a Cubesat nanosatellite

Published:2023-10-26 Issue:31 Volume:62 Page:8462
ISSN:1559-128X
Container-title:Applied Optics
language:en
Short-container-title:Appl. Opt.

Author:

Kuzin Sergey¹²,Bogachev Sergey²,Pertsov Andrey¹,Loboda Ivan²,Chervinsky Viktor¹,Chkhalo Nikolay³,Lopatin Alexey³,Malyshev Ilya³^ORCID,Pestov Alexey³^ORCID,Pleshkov Roman³^ORCID,Polkovnikov Vladimir³,Toropov Michael³,Tsybin Nikolay³,Zuev Sergey³

Affiliation:

1. Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences (ISTP SB RAS)

2. Space Research Institute of the Russian Academy of Sciences

3. Institute for Physics of Microstructures of the Russian Academy of Sciences

Abstract

This paper describes in detail a compact (2U format) telescope operating in the extreme ultraviolet range for studying the solar corona at a wavelength of 17.14 nm. The telescope objective has been built according to the Ritchey–Chrétien scheme with the following parameters: effective focal length of 381.3 mm, field of view of 2×2∘, and angular resolution of 11 in. Reflective multilayer Al/Be coatings were used, having 55% reflectance and a 0.4 nm spectral bandwidth. The wavefront rms error is 30 nm. An interferometric technique for controlling the shapes of the substrates and for adjusting the optical system and detector of the telescope assembly is described in detail.

Funder

Russian Science Foundation

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering

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