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Comparison of approaches in the manufacture of broadband mirrors for the EUV range: Aperiodic and stack structures

 
: Barysheva, M.M.; Garakhin, S.A.; Zuev, S.Yu.; Polkovnikov, V.N.; Salashchenko, N.N.; Svechnikov, M.V.; Chkhalo, N.I.; Yulin, S.

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Quantum electronics. A translation of the journal Kvantovaya elektronika 49 (2019), Nr.4, S.380-385
ISSN: 1063-7818
Englisch
Zeitschriftenaufsatz
Fraunhofer IOF ()

Abstract
We have developed the design and experimentally studied aperiodic and stack broadband Mo/Si mirrors for the purposes of the KORTES project, optimised for uniform reflection in the 17 - 21 nm wavelength range. It is shown that stack structures with an insignificant loss in the reflection coefficient are much more preferable from the point of view of manufacturing and certification, which, in turn, makes it possible to correct the deposition process and to reach the calculated parameters of a multilayer mirror in a small number of iterations.

: http://publica.fraunhofer.de/dokumente/N-558963.html