研究目的
Simultaneous single-shot unambiguous detection and measurement of pulse front tilt, spatial chirp, spectral divergence and pulse width in ultrashort pulsed laser beams.
研究成果
The two spatially inverted pulse quasi single-shot tilted pulse-front autocorrelator coupled with spectral interferometry effectively characterizes ultrashort pulse laser beams under various experimental situations. It improves the accuracy in measuring rotation angle of autocorrelation traces and spatial chirp by using two spatially inverted pulses. The method's sensitivities and accuracies are validated through close accordance with theoretical values.
研究不足
The technique's sensitivity and accuracy are dependent on the experimental setup parameters such as cross-over angle and temporal delay between replica pulses. Detection of very small spectral divergence or pulse front tilt may require optimization of these parameters.
