Abstract

In the spectral range 0.5<hv<11.9 eV, reflectance data were obtained from molybdenum and ruthenium films, vapor deposited in ultra-high vacuum and extended to 14 eV using the reflectance of a polished bulk sample. The Mo data are different from previously reported data. The optical constants are obtained by a Kramers–Kronig analysis of the normal-incidence reflectance. In the analysis for hv>14 eV (23 eV for Mo) the reflectance was represented by an inverse power function where the exponent was determined with the aid of the reflectance measured at 50° incidence for hv<11.9 eV. The imaginary part of the dielectric constant, ∊₂, has shoulders at about 2.2 and 4.0 eV for Mo and 1.6 eV for Ru. The loss functions Im[1/∊] and Im [1/(1+∊)] have peaks at 10.8 and 9.9 eV, respectively, for Mo, and 10.2 and 8.7 eV, respectively, for Ru. Interband transitions dominate for 0.5≲hv≲10.0 eV.

© 1970 Optical Society of America

Optical Properties of Clean Molybdenum*

J. P. Waldron and D. W. Juenker
J. Opt. Soc. Am. 54(2) 204-207 (1964)

Analysis of Optical- and Inelastic-Electron-Scattering Data. II. Application to Al*†

C. J. Powell
J. Opt. Soc. Am. 60(1) 78-93 (1970)

Optical Properties of Amorphous Selenium in the Vacuum Ultraviolet

Algird G. Leiga
J. Opt. Soc. Am. 58(11) 1441-1445 (1968)

Optical Properties of Silver Chloride*

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

Ultraviolet optical properties of Li

T. A. Callcott and E. T. Arakawa
J. Opt. Soc. Am. 64(6) 839-845 (1974)