Abstract

The optical properties of silver bromide at room temperature have been determined in the energy range of 3–16 eV by means of reflectivity measurements. In the near-ultraviolet region (uv), the four absorption peaks reported by Okamoto were observed at 3.96, 4.40, 5.46, and 6.20 eV. The high-energy side of the largest peak at 6.20 eV decreased approximately 40% of its maximum before yielding to the vacuum-ultraviolet (vuv) spectrum consisting of well-defined peaks at 8.05, 10.1, and 12.3 eV. The reflectivity decreased quite rapidly for photon energies greater than 13.0 eV. A Kramers–Kronig analysis was employed to calculate the phase shift on reflection and the resulting optical constants. Vacuum-ultraviolet spectra of R, α, n, κ, ∊₁, ∊₂, and Im(1/∊) of silver bromide are given for the first time. Details of these measurements and calculations and discussion of alternative band-theoretical interpretations of the observed structure are given.

© 1972 Optical Society of America

Optical Properties of Silver Chloride*

John J. White and Joseph W. Straley
J. Opt. Soc. Am. 58(6) 759-763 (1968)

Investigation of the Kramers–Kronig analysis: revised optical constants of AgCl

R. S. Bauer, W. E. Spicer, and J. J. White
J. Opt. Soc. Am. 64(6) 830-833 (1974)

Luminescence properties of praseodymium- and erbium-doped silver bromide crystals

David Bunimovich, Lev Nagli, and Abraham Katzir
Appl. Opt. 36(30) 7708-7711 (1997)

Free-Carrier Absorption in Silver Bromide

Ralph M. Grant
J. Opt. Soc. Am. 55(11) 1457-1460 (1965)

Optical Constants of K₃Sb

Atsuko Ebina and Tadashi Takahashi
J. Opt. Soc. Am. 62(5) 639-644 (1972)