TY - JOUR
KW - Deep ultraviolet
KW - Electric fields
KW - molecules
KW - Numerical simulation
KW - Ultrashort pulses
KW - Vacuum ultraviolet
AU - S. Walker
AU - Ran Reiff
AU - Agnieszka Jaron-Becker
AU - Andreas Becker
AB - Characterization of ultrashort vacuum and deep ultraviolet pulses is important in view of applications of those pulses for spectroscopic and dynamical imaging of atoms, molecules, and materials. We present an extension of the autocorrelation technique, applied for measurement of the pulse duration via a single Gaussian function. Analytic solutions for two-photon ionization of atoms by Gaussian pulses are used along with an expansion of the pulse to be characterized using multiple Gaussians at multi-color central frequencies. This approach allows one to use two-photon autocorrelation signals to characterize isolated ultrashort pulses and pulse trains, i.e., the time-dependent amplitude and phase variation of the electric field. The potential of the method is demonstrated using vacuum and deep ultraviolet pulses and pulse trains obtained from numerical simulations of macroscopic high harmonic spectra.
BT - Opt. Lett.
DA - 2021-07
DO - 10.1364/OL.427200
IS - 13
M1 - 13
N2 - Characterization of ultrashort vacuum and deep ultraviolet pulses is important in view of applications of those pulses for spectroscopic and dynamical imaging of atoms, molecules, and materials. We present an extension of the autocorrelation technique, applied for measurement of the pulse duration via a single Gaussian function. Analytic solutions for two-photon ionization of atoms by Gaussian pulses are used along with an expansion of the pulse to be characterized using multiple Gaussians at multi-color central frequencies. This approach allows one to use two-photon autocorrelation signals to characterize isolated ultrashort pulses and pulse trains, i.e., the time-dependent amplitude and phase variation of the electric field. The potential of the method is demonstrated using vacuum and deep ultraviolet pulses and pulse trains obtained from numerical simulations of macroscopic high harmonic spectra.
PB - OSA
PY - 2021
EP - 3083
T2 - Opt. Lett.
TI - Characterization of vacuum and deep ultraviolet pulses via two-photon autocorrelation signals
UR - http://ol.osa.org/abstract.cfm?URI=ol-46-13-3083
VL - 46
ER -