Ultrashort Laguerre-Gaussian pulses with angular and group velocity dispersion compensation.
Coherent optical vortices are generated from ultrashort 6.4 fs pulses. Our results demonstrate angular dispersion compensation of ultrashort 6.4 fs Laguerre-Gaussian (LG) pulses as well as what is believed to be the first direct autocorrelation measurement of 80 fs LG amplified pulses. A reflective-mirror-based 4f-compressor is proposed to compensate the angular and group velocity dispersion of the ultrashort LG pulses.
Zeylikovich
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Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, City College and Graduate Center of the City University of New York, New York, NY 10031, USA. zeylikov@sci.ccny.cuny.edu
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Kartazaev
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Alfano
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