Modification of Faceplates by Selective Chemical Etchings

Abstract:

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The structuring of the inner surface of photocathode windows is of great interest with regard to the efficiency of photomultipliers. A way of increasing the number of photons absorbed by a given surface is to define periodic structures with a period lower or greater than the wavelength of light. Tailoring the structure of the surface to drastically reduce the reflectance, and thus increasing the effective absorption, is possible. Experiments have been conducted with fibre-optic faceplates of imaging tubes. In this work, these structures have been developed by chemical etchants, which selectively react with the transmission fibres or matrix glasses.

Info:

Periodical:

Materials Science Forum (Volumes 480-481)

Edited by:

A. Méndez-Vilas

Pages:

417-422

DOI:

10.4028/www.scientific.net/MSF.480-481.417

Citation:

M. González et al., "Modification of Faceplates by Selective Chemical Etchings", Materials Science Forum, Vols. 480-481, pp. 417-422, 2005

Online since:

March 2005

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Price:

$35.00

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[2] D.H. Raguin and G.M. Morris: Laser Focus World 33 (1997), p.113.

[3] S.J. Wilson and M.C. Hutley: Optica Acta 29 (1982), p.993.

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