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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 20, Iss. 11 — Nov. 1, 2003
  • pp: 2297–2306

Amplification of vacuum-ultraviolet radiation by reflection from planar and corrugated aluminum films containing helium excimers

Jean Pol Vigneron, Virginie Lousse, Amand A. Lucas, and Kazuo Ohtaka  »View Author Affiliations

JOSA B, Vol. 20, Issue 11, pp. 2297-2306 (2003)

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Alpha particles accelerated towards a flat Al sample accumulate and precipitate in the form of dense He bubbles. Under fast-electron bombardment, these bubbles have been observed to generate He excimer molecules which decay by emitting vacuum-ultraviolet (VUV) fluorescent radiation. The calculation of the VUV dielectric function and reflectance shows that a thin planar film made of such He–Al composite and driven out of equilibrium can generate amplifying reflection. This phenomenon occurs at specific isolated frequencies and incidence angles when the excimer concentration in the pressurized fluid of the bubbles becomes sufficient. By use of analytical and numerical multiple-scattering simulations, the expected gain of this VUV amplifying mirror is studied, and the possible improvement brought about by shaping the film into a periodic array of adequately adjusted microresonators is demonstrated.

© 2003 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.3380) Materials : Laser materials
(230.5750) Optical devices : Resonators

Jean Pol Vigneron, Virginie Lousse, Amand A. Lucas, and Kazuo Ohtaka, "Amplification of vacuum-ultraviolet radiation by reflection from planar and corrugated aluminum films containing helium excimers," J. Opt. Soc. Am. B 20, 2297-2306 (2003)

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