Principal frequency of an ultrashort laser pulse
نویسندگان
چکیده
We introduce an alternative definition of the main frequency ultrashort laser pulse, principal $\omega_P$. This parameter is complementary to most accepted and widely used carrier $\omega_0$. Given fact that these pulses, also known as transients, have a temporal width comprising only few cycles wave, corresponding spectral bandwidth $\Delta\omega$ covering several octaves, $\omega_P$ describes, in more precise way, dynamics driven by sources. present examples where, for instance, able correctly predict high-order harmonic cutoff independently envelope phase. confirmed solving time-dependent Schr\"odinger equation reduced dimensions, supplemented with time-analysis quantum spectra, where it possible observe how sub-cycle electron better described using The concept $\omega_P$, however, can be applied large variety scenarios, not within strong field physics domain.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.103.053124