Ultrashort laser pulses show a potential for high-precision material processing. However, such pulses may broaden due to the wide spectrum that corresponds to the ultrashort temporal duration. For ultrashort pulse applications it is important to understand the mechanism of pulse broadening, and even to control it. As examples, we demonstrate how material dispersion and diffraction gratings can affect the pulse behavior.
Pulse Broadening in Dispersive Media
We investigate the relationship between the broadening of an ultrashort pulse and the dispersion of given materials that the pulse propagates through.
Grating Stretcher for Ultrashort Pulses
We set up a pulse stretcher consisting of two diffractive gratings and investigate the pulse broadening effect induced by the interaction of the pulse with the gratings.
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