title: Ultrashort Laguerre-Gaussian pulses with angular and group velocity dispersion compensation.
abstract: 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.
authors.affiliation: 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
authors.forename: I
authors.initials: I
authors.lastname: Zeylikovich
authors.forename: H I
authors.initials: HI
authors.lastname: Sztul
authors.forename: V
authors.initials: V
authors.lastname: Kartazaev
authors.forename: T
authors.initials: T
authors.lastname: Le
authors.forename: R R
authors.initials: RR
authors.lastname: Alfano