Physical optics

Focusing diffraction optics for orbital telescopes

V. V. Lider

Institute of Cristallography Russian Academy of Sciences, 117333 Moscow, Russia

Abstract: The review is devoted to the principles, state of the art and problems of diffractive optics used to focus X-ray and $\gamma$-radiation in telescopes at orbital stations. Various multilayer structures for normal incidence telescopes, supermirrors for Wolter optics, Laue lens as a soft $\gamma$-radiation concentrator, as well as modified Fresnel zone plates for focusing radiation in a wide energy range with an unprecedented high angular resolution (10$^{-1}$–10$^{-3''}$).

Keywords: X-ray and $\gamma$-radiation, X-ray and $\gamma$-telescopes, diffraction, multilayer structures, Laue lens, Fresnel zone plates.

Received: 08.11.2021
Revised: 01.03.2022
Accepted: 18.03.2022

DOI: 10.21883/OS.2022.07.52724.44-22

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