Design and realization of a grazing-incidence plane-grating monochromator

N. Fabris; F. Frassetto; P. Miotti; C. Spezzani; L. Poletto

doi:10.1117/12.2319691

17 September 2018 Design and realization of a grazing-incidence plane-grating monochromator

N. Fabris, F. Frassetto, P. Miotti, C. Spezzani, L. Poletto

Proceedings Volume 10760, Advances in X-Ray/EUV Optics and Components XIII; 1076009 (2018) https://doi.org/10.1117/12.2319691
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

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.

Citation Download Citation

N. Fabris, F. Frassetto, P. Miotti, C. Spezzani, and L. Poletto "Design and realization of a grazing-incidence plane-grating monochromator", Proc. SPIE 10760, Advances in X-Ray/EUV Optics and Components XIII, 1076009 (17 September 2018); https://doi.org/10.1117/12.2319691

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