查看更多>>摘要：We report high-energy tunable 6.5‒12 μm ps mid-infrared radiation generation based on OPA pumped using 1064 nm laser in LISe crystal.We simulated the relationship between the idler energy and crystal length.An optimum LISe length of 4 mm was used to enhance the idler energy experimentally.At a pump energy of～9.4 mJ,energy levels of～146 and of～27 μJ are generated at 6.5 μm and 12 μm,respectively.The highest energy of～205 μJ is achieved at 8.1 μm at a pump energy of～19 mJ.Finally,the angular and spectral width acceptance are measured.
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