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Proceedings Paper

Design and realization of a grazing-incidence plane-grating monochromator
Author(s): N. Fabris; F. Frassetto; P. Miotti; C. Spezzani; L. Poletto
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Paper Abstract

The design and realization of a plane-grating monochromator mainly intended for high-energy resolution in the extreme-ultraviolet and soft-X-ray spectral regions is presented. The principal application is the spectral selection of high-order laser harmonics generated in gas combined with the possibility to achieve sub-20-meV bandwidth, approaching synchrotron-like beamlines resolution performances. This geometry has three optical elements: a uniform-line-spaced plane grating illuminated by the converging light coming from a focusing cylindrical mirror and an additional plane mirror that is needed to change the grating subtended angle to keep the system in focus on a fixed slit. The parameters of the focusing mirror are determined to introduce a coma that compensates for the coma given by the grating. A monochromator for the 12-50 eV region has been realized to show the feasibility and the performances of the configuration.

Paper Details

Date Published: 17 September 2018
PDF: 9 pages
Proc. SPIE 10760, Advances in X-Ray/EUV Optics and Components XIII, 1076009 (17 September 2018); doi: 10.1117/12.2319691
Show Author Affiliations
N. Fabris, CNR-IFN Padova (Italy)
Univ. degli Studi di Padova (Italy)
F. Frassetto, CNR-IFN Padova (Italy)
P. Miotti, CNR-IFN Padova (Italy)
Univ. degli Studi di Padova (Italy)
C. Spezzani, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
L. Poletto, CNR-IFN Padova (Italy)

Published in SPIE Proceedings Vol. 10760:
Advances in X-Ray/EUV Optics and Components XIII
Shunji Goto; Christian Morawe; Ali M. Khounsary, Editor(s)

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