Abstract

Excitation spectrum of zinc silicate phosphor showed two bands. A major band is located between 2250A and 2900A, and a minor one between 1950A and 2250A. Absorption measurements of clear willemite crystals showed two similar bands located at about the same positions. Absorption measurements for zinc silicate phosphor showed a band located between 2000A and 3000A. These results indicate that the excitation spectrum of a phosphor also measures the absorption of that phosphor.

© 1945 Optical Society of America

The Optical and Electrical Properties of Zinc Silicate Phosphors

Elemér Nagy
J. Opt. Soc. Am. 39(1) 42-49 (1949)

Optical Properties of Calcium Silicate Phosphors

Frank J. Studer and Gorton R. Fonda
J. Opt. Soc. Am. 39(8) 655-660 (1949)

Fluorescence of Silicate Phosphors*

Keith H. Butler
J. Opt. Soc. Am. 37(7) 566-571 (1947)

Optical Properties of Zinc Fluoride Phosphors*

Gorton R. Fonda and Frank J. Studer
J. Opt. Soc. Am. 38(12) 1007-1014 (1948)

Temperature-Dependent Structure of the Emission Spectra of Two Crystalline Forms of the Zinc Silicate: Mn Phosphor

R. E. Shrader
J. Opt. Soc. Am. 39(8) 699-701 (1949)