The Optical Properties of Metallic and Crystalline Powders

Abstract

The method of preparing finely divided metallic “blacks” is described and measurements on the transparency of these blacks in the infrared are presented. The use of sodium and thallium chlorides, distilled as finely divided powders on radiometer vanes, yields a selective receiver the far infrared. A new type of transmission band, shown by coarse powders of quartz and calcite is described.

© 1933 Optical Society of America

Infrared Radiations from Small Particles

A. H. Pfund
J. Opt. Soc. Am. 23(8) 270-273 (1933)

Transmissions of Powder Films to the Infrared Spectrum

Jesse H. Plummer
J. Opt. Soc. Am. 26(12) 434-438 (1936)

Interference of Light in Metallic Films

J. B. Nathanson
J. Opt. Soc. Am. 23(11) 388-393 (1933)

Studies in Refractive Index. I and II

A. M. Taylor and A. M. Glover
J. Opt. Soc. Am. 23(6) 206-215 (1933)

Color in Films of Sputtered Tin

Clarence J. Overbeck
J. Opt. Soc. Am. 23(3) 109-113 (1933)