This article is cited in 112 papers

REVIEWS OF TOPICAL PROBLEMS

Channeling of neutral particles in micro- and nanocapillaries

S. B. Dabagov

P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: After a brief review of the main areas of research in X-ray optics and an analysis of the development of capillary optics, a general theory of radiation propagation through capillary structures is described in both geometrical optics and wave optics approximations. Analysis of the radiation field structure inside a capillary waveguide shows that wave propagation in channels can be of a purely modal nature, with the transmitted energy mostly concentrated in the immediate neighborhood of the capillary inner walls. A qualitative change in radiation scattering with decreasing channel diameter — namely, the transition from surface channeling in microcapillaries to bulk channeling in nanocapillaries — is discussed.

PACS: 07.85.Fv, 41.50.+h, 42.25.-p

Received: May 14, 2003

DOI: 10.3367/UFNr.0173.200310b.1083

 English version: Physics–Uspekhi, 2003, 46:10, 1053–1075

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