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METHOD OF CONVERTING ULTRASHORT LASER PULSES INTO SECOND HARMONIC
METHOD OF CONVERTING ULTRASHORT LASER PULSES INTO SECOND HARMONIC
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机译:将超短脉冲激光转换为二次谐波的方法
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摘要
FIELD: physics.;SUBSTANCE: proposed method comprises advancing laser pulse through converter nonlinear crystal. Prior to advancing to crystal, laser pulse is frequency chirped, while produced second harmonic impulse in time compressed. Note here that duration of second harmonic pulse after compression is defined from relationship where τ is main frequency pulse duration, and τch is chirped pulse duration.;EFFECT: two fold decrease in second harmonic pulse relative to starting femtosecond laser pulse with duration over 100 fs with high-efficiency conversion.;3 dwg
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