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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 5, Iss. 6 — Jun. 1, 1966
  • pp: 1069–1072

Stimulated Effects in N2 and CH4 Gases

T. A. Wiggins, R. V. Wick, and D. H. Rank  »View Author Affiliations


Applied Optics, Vol. 5, Issue 6, pp. 1069-1072 (1966)
http://dx.doi.org/10.1364/AO.5.001069


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Abstract

Stimulated Brillouin scattering from N2 and CH4 using a giant-pulse laser has been observed in an arrangement whereby the laser cannot relase and amplify the back-scattered radiation. This allows a quantitative study of the parameters affecting stimulated Brillouin scattering. The back-scattered beam converges at the same angle at which the laser beam diverges. The Brillouin component can have a narrow spectral width, one-third that of the laser itself, and in some cases can have a duration of only a few nanoseconds. N2 at high pressure can back-scatter as much as 45% of the incident power. The speeds of sound in CH4 and N2 have been measured at lower pressures than were previously reported.

© 1966 Optical Society of America

History
Original Manuscript: January 20, 1966
Published: June 1, 1966

Citation
T. A. Wiggins, R. V. Wick, and D. H. Rank, "Stimulated Effects in N2 and CH4 Gases," Appl. Opt. 5, 1069-1072 (1966)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-5-6-1069

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