论文信息 - High-efficiency second-harmonic generation of superintense ultrashort laser pulses.

High-efficiency second-harmonic generation of superintense ultrashort laser pulses.

The effect of instantaneous cubic nonlinearity on second-harmonic generation of femtosecond laser pulses is investigated. The possibility of improving generation efficiency and shortening pulse duration is analyzed. Energy conversion efficiency of 60% was obtained in an experiment in a 1 mm thickness KDP crystal at the peak intensity of 0.6 TW/cm(2) and the duration of 60 fs.

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