METHOD FOR SHORT PULSING OF PULSE LASER BEAM BY LEAD MOLYBDATE SINGLE CRYSTAL

摘要

PROBLEM TO BE SOLVED: To enable nonthermal processing to minimize the deformation of a workpiece by using a laser beam of a pulse width shorter than the time of the thermal relaxation of the workpiece in the field of processing using the laser beam.

SOLUTION: The method for short pulsing of the pulse laser beam comprises making the pulse laser beam incident on one or a plurality of lead molybdate single crystals and generating the scattered light which is shorter in wavelength than the oscillation wavelength of the incident light pulse, makes wavelength separation easy, has a maximal value and has the time width of the picosecond order of a single wavelength by a stimulated Raman effect.

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