Temporal profile measurements of ultrafast pulsed laser systems

摘要： Ultrafast pulsed lasers can be used to measure the phenomena occurring at femtosecond (fs) (10?15 s) time scale which include photo synthesis, protein collapsing and sub-atomic vibrations. In normal course, the temporal pro?le of the nanosecond (ns) pulsed lasers can be estimated by using the standard detectors because the recombination time of the electron-hole pair is of the order of ns. Nevertheless, the electronic equipment and the standard detectors are insuf?cient to measure the temporal pro?le of the ultrafast pulsed lasers. In the present investigation, we compare various techniques to measure the temporal pro?le of the ultrafast lasers which is followed by the details of the experimental con?guration of an autocorrelation technique. The temporal pro?le of the ultrafast pulsed lasers has shown various pulse width values in the experimental set-up when recorded at different con?gurations.