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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 24 — Dec. 15, 2005
  • pp: 3416–3418

Hard protective waterproof coating for high-power laser optical elements

Masataka Murahara, Nobuhiro Sato, and Akimitsu Ikadai  »View Author Affiliations

Optics Letters, Vol. 30, Issue 24, pp. 3416-3418 (2005)

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We developed a new method for making a waterproof coating by photooxidation of silicone oil. The silicone oil was spin coated onto the surfaces of optical elements, i.e., a plastic lens, a laser mirror, and a nonlinear optical crystal, and then irradiated with a xenon excimer lamp in air, which transformed the organic silicone oil into an amorphous glass film. This technique has enabled an optical thin film to transmit ultraviolet rays of wavelengths below 200 nm and to exhibit the characteristics of homogeneity, high density, and resistance to environmental effects and to corrosion by water, and a Mohs scale value of 5.

© 2005 Optical Society of America

OCIS Codes
(310.1210) Thin films : Antireflection coatings
(310.1620) Thin films : Interference coatings
(310.3840) Thin films : Materials and process characterization
(310.6860) Thin films : Thin films, optical properties
(310.6870) Thin films : Thin films, other properties
(350.6670) Other areas of optics : Surface photochemistry

ToC Category:
Thin Films

Masataka Murahara, Nobuhiro Sato, and Akimitsu Ikadai, "Hard protective waterproof coating for high-power laser optical elements," Opt. Lett. 30, 3416-3418 (2005)

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