Abstract

Luminescent films of ZnS [Mn], Zn₂SiO₄ [Mn], Zn₂(PO₄)₃ [Mn], and [Mn], CaF₂ CaWO₄[W] have been formed by evaporation in a vacuum and a subsequent heat treatment. Most of the films may be made either transparent or fogged depending on the post-heat treatment. The luminescent brightness of the fogged films, under cathode ray excitation, approaches the brightness of the bulk powdered material. The brightness of the transparent films is limited chiefly by internal reflection. In general, the phosphor chemistry of the powdered materials has been found to be applicable to thin films.

© 1957 Optical Society of America

Luminescent Phases in Willemite Films

Charles Feldman and Margaret O’Hara
J. Opt. Soc. Am. 48(11) 816-820 (1958)

Bilayer Bichromatic Cathode Screen

Charles Feldman
J. Opt. Soc. Am. 47(9) 790-794 (1957)

Optical Properties and Oxidation of Evaporated Titanium Films*

Georg Hass and Alan P. Bradford
J. Opt. Soc. Am. 47(2) 125-129 (1957)

Nature of Luminescent Centers in Alkali Halide and Zinc Sulfide Phosphors*

Ferd E. Williams
J. Opt. Soc. Am. 47(10) 869-876 (1957)

Some New Aspects of Germanate and Fluoride Phosphors*

Ferd E. Williams
J. Opt. Soc. Am. 37(4) 302-307 (1947)