A Nd: YAG laser with a flat-top beam pro
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W.C. Yen; C.T. Huang; H.P. Liu; L.P. Lee
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Article
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1997
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Elsevier Science
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English
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An active resonator designed especially for Nd : YAG lasers is proposed. The expected performance of this resonator is the generation of a laser beam with a flat-topped distribution and a divergence invariant under the thermal lensing effect, such that it could be applied to surface treatment withou