Long-cavity Nd:YAG laser used in single-shot spontaneous Raman scattering measurements.
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.
Cléon
Guillaume
G
CORIA-UMR 6614 CNRS-Université and INSA de Rouen, 76801 Saint Etienne du Rouvray, France. armelle.cessou@coria.fr
Stepowski
Denis
D
Cessou
Armelle
A