Abstract

High-resolution Brillouin spectra were recorded for light scattered at small angles from liquid CS₂. The use of a single-mode He–Ne laser, locked in frequency to a Fabry–Perot interferometer, permitted measurements of line widths of the order of 10 MHz for frequencies in the range 300–1000 MHz. These measurements extend previous Brillouin line-width measurements at higher frequencies into the region where relaxation effects are dominant and connect the optical measurements with lower-frequency acoustical data.

© 1975 Optical Society of America

Absolute measurements of Brillouin-scattering efficiencies of molecular liquids*

Yoshiaki Kato and G. A. Zdasiuk
J. Opt. Soc. Am. 65(9) 995-998 (1975)

Vibrational and rotational–translational temperatures in N₂ by interferometric measurement of the pure rotational Raman effect

J. J. Barrett and A. B. Harvey
J. Opt. Soc. Am. 65(4) 392-398 (1975)

Detection of ²⁰Na atoms and measurement of sodium-vapor densities by means of atomic-resonance fluorescence

F. C. M. Coolen and H. L. Hagedoorn
J. Opt. Soc. Am. 65(8) 952-955 (1975)

Transparency of pair-correlated, random distributions of small scatterers, with applications to the cornea*

Victor Twersky
J. Opt. Soc. Am. 65(5) 524-530 (1975)

Analysis of the hyperfine structure of the mercury 6³D₃ → 6³P₂ transition*

Mary H. Keirns and Steven D. Colson
J. Opt. Soc. Am. 65(12) 1413-1417 (1975)