Multiwavelength investigation of laser-damage performance in potassium dihydrogen phosphate after laser annealing.
The laser-induced damage performance of potassium dihydrogen phosphate and deuterated potassium dihydrogen phosphate nonlinear optical crystals after pre-exposure to lower-energy laser pulses (laser annealing, also known as laser conditioning) is investigated as a function of wavelength for both the damaging and conditioning pulses. We obtain a quantitative evaluation of the bulk damage performance of these materials by measuring the density of damage events as a function of laser parameters. This new method allows for a detailed assessment of the improvement of material performance from laser conditioning and reveals the key parameters for optimizing performance depending on the operational wavelength.
DeMange
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Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551-0808, USA. demange1@llnl.gov
Carr
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Negres
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Radousky
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HB
Demos
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SG