Long-cavity Nd:YAG laser used in single-shot spontaneous Raman scattering measurements |
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Authors: | Cléon Guillaume Stepowski Denis Cessou Armelle |
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Institution: | CORIA-UMR 6614 CNRS-Université and INSA de Rouen, 76801 Saint Etienne du Rouvray, France. armelle.cessou@coria.fr |
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Abstract: | The use of a 100 ns pulse Nd:YAG laser is proposed to perform single-shot measurements by spontaneous Raman scattering. The long pulse duration is obtained thanks to a White cell placed inside the laser oscillator. This lengthens the pulse duration within the laser cavity, keeping almost the same beam quality as standard Nd:YAG lasers. The laser system is described, the advantages are compared with extra-cavity stretched lasers, and single-shot measurement of concentration in gas is demonstrated. |
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