Abstract

We studied the growth from amplified spontaneous emission of stimulated Raman scattering in air using a 20-cm-diameter, linearly polarized, 1053-nm laser beam propagating over a 20–150-in air path. For 2.5-nsec square pulses we found about 1% conversion on the S(8) and S(10) rotational Raman lines of nitrogen at an intensity–length product of 12 TW/cm, which implies a small-signal gain coefficient of 2.5 cm/TW. For 1-nsec square pulses, 1% conversion requires an intensity–length product of about 16 TW/cm. The beam quality deteriorates severely above Raman threshold.

© 1985 Optical Society of America

Stimulated rotational Raman scattering in air with a high-power broadband laser

M. D. Skeldon and R. Bahr
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Simultaneous observation of rotational coherent Stokes Raman scattering and coherent anti-Stokes Raman scattering in air and nitrogen

J. B. Zheng, A. Leipertz, J. B. Snow, and R. K. Chang
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Stimulated Raman scattering with a tightly focused pump beam

B. N. Perry, P. Rabinowitz, and D. S. Bomse
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Four-dimensional dynamics of multirotational transition stimulated rotational Raman scattering in air

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Stimulated Raman scattering from individual water and ethanol droplets at morphology-dependent resonances

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