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Raman shifting of Nd:YAG laser radiation in methane: an efficient method to generate 3-μm radiation for medical uses

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Abstract

Generation of infrared radiation at λ = 2.804 μm by stimulated Raman scattering of Nd:YAG laser radiation (λ = 1.06 μm) in methane is investigated. Up to 12 mJ/pulse are obtained with 320-mJ input energy; the generated radiation shows a beam divergence of ≤1 mrad. The values obtained meet the requirements established in the literature, e.g., for eye surgery.

© 1989 Optical Society of America

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