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Journal of Optical Technology

Journal of Optical Technology


  • Vol. 71, Iss. 6 — Jun. 1, 2004
  • pp: 407–410

The problem of reducing optical losses in fluoride films

E. N. Kotlikov, E. V. Khonineva, and V. N. Prokashev  »View Author Affiliations

Journal of Optical Technology, Vol. 71, Issue 6, pp. 407-410 (2004)

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Fluoride films (made from barium, calcium, strontium, and lead fluorides) tend to crystallize when they are sputtered. For an optical thickness more than 3-5 µm, their transparency in the visible region decreases because of losses to scattering. This paper discusses the optical characteristics of doped films of barium, calcium, strontium, and lead fluorides and shows that it is possible to obtain films that are simultaneously transparent in the visible and IR regions. Doped barium fluoride films were used as a basis for synthesizing, fabricating, and studying interference coatings that operate in the mid-IR and the visible regions. We give as an example coatings simultaneously used in laser systems with wavelengths of 10.6 and 0.63 µm. © 2004 Optical Society of America

E. N. Kotlikov, E. V. Khonineva, and V. N. Prokashev, "The problem of reducing optical losses in fluoride films," J. Opt. Technol. 71, 407-410 (2004)

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