Raman shifting of Nd:YAG laser radiation in methane:an efficient method to generate 3-microm radiation for medical uses.
Generation of infrared radiation at lambda = 2.804 microm by stimulated Raman scattering of Nd:YAG laser radiation (lambda = 1.06 microm) 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.
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Gathen
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Döbele
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