Complete model to simulate the thermal defocusing of a laser beam focused in water

Bernold Richerzhagen; Guy P. Delacretaz; Rene-Paul Salathe

doi:10.1117/1.600995

1 July 1996 Complete model to simulate the thermal defocusing of a laser beam focused in water

Bernold Richerzhagen, Guy P. Delacretaz, Rene-Paul Salathe

Optical Engineering, Vol. 35, Issue 7, (July 1996). https://doi.org/10.1117/1.600995

The effect of thermal defocusing of a pulsed Nd:YAG laser beam focused in a water cell is observed by a shutter video camera as a function of the position in the cell and the time during the laser pulse. In a first case the laser beam is directly focused into the water. In a second experiment the beam is coupled into a multimode fiber and the fiber output focused into the cell. A theoretical model is proposed explaining the observed phenomena. The simulation shows results that are in very good agreement with the measured values.

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Bernold Richerzhagen, Guy P. Delacretaz, and Rene-Paul Salathe "Complete model to simulate the thermal defocusing of a laser beam focused in water," Optical Engineering 35(7), (1 July 1996). https://doi.org/10.1117/1.600995

Published: 1 July 1996

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