Forced Raman scattering in air by a two-frequency laser beam

A. E. Dangor*, A. K L Dymoke-Bradshaw, A. Dyson, T. Garvey, S. J. Karttunen, J. P. Partanen, R. R. E. Salomaa, A. J. Cole, C. Danson, C. B. Edwards, R. G. Evans

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)


Stimulated Raman scattering in atmospheric nitrogen has been observed using two copropagating high power laser beams at 1.064 mu m and 1.053 mu m from a neodymium glass laser. This is due to the near coincidence of the beat frequency at 98.2 cm-1 with a rotational line of nitrogen (transition between J=11 and J=13) at 99 cm-1. The beams were of total intensity 6*109 W cm-2 and had a common air path of approximately=30 m. Large amplitude Stokes and anti-Stokes sidebands up to one half the pump beam intensity were generated. The observations are compared with a theoretical treatment of the interaction.

Original languageEnglish
Article number010
Pages (from-to)797-805
Number of pages9
JournalJournal of Physics B: Atomic Molecular and Optical Physics
Issue number5
Publication statusPublished - 1989
MoE publication typeA1 Journal article-refereed


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