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Kvantovaya Elektronika, 2012 Volume 42, Number 2, Pages 143–152 (Mi qe14770)

This article is cited in 29 papers

X-ray optics

Aperiodic multilayer structures in soft X-ray radiation optics

E. A. Vishnyakovab, F. F. Kamenetsb, V. V. Kondratenkoc, M. S. Lugininab, A. V. Panchenkob, Yu. P. Pershinc, A. S. Pirozhkovd, E. N. Ragozinab

a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
c Khar'kov Polytechnical University
d Advanced Beam Technology Division, Japan Atomic Energy Agency

Abstract: We review the works related to the development of aperiodic multilayer structures — optical elements for the soft X-ray range. The potentialities of aperiodic multilayer mirrors as regards reflection of soft X-ray radiation in a broad wavelength range, first and foremost at normal radiation incidence, as well as the capabilities of broadband polariser mirrors are investigated. The results of multiparametric optimisation and experimental results for Mo/Si aperiodic mirrors (λ ≥ 12.5 nm) as well as calculations for several promising material pairs (Pd/Y, Ag/Y, etc.) for λ ≤ 12.5 nm are outlined. The effect of transition layers on the reflectivity is considered, in particular by taking into account the smooth variation of the permittivity near interfacial boundaries. The use of broadband mirrors in laser-plasma spectroscopic experiments is discussed.

Keywords: soft X-ray range, broadband multilayer mirrors, transition layers, aperiodic multilayer structures.

PACS: 07.85.Fv, 42.55.Vc

Received: 17.11.2011


 English version:
Quantum Electronics, 2012, 42:2, 143–152

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