Open AccessNonlinear optical response in molecular nitrogen: from ab-initio calculations to optical pulse simulations
Author(s) -
Anand Bahl,
Vinay Pramod Majety,
Armin Scrinzi,
M. Kolesík
Publication year - 2017
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.42.002295
Subject(s) - nonlinear optics , metastability , high harmonic generation , ionization , polarization (electrochemistry) , optics , nonlinear system , physics , nonlinear optical , second harmonic generation , laser , materials science , chemistry , quantum mechanics , ion
Using first-principle multi-electron calculations via the hybrid anti-symmetrized coupled channels method, we create a model to describe both the nonlinear polarization and ionization of the nitrogen molecule. Based on the metastable electronic state approach, it is designed for space-and-time-resolved simulations in nonlinear optics that require modeling of optical pulses that exhibit rich spectral dynamics and propagate over long distances. As a demonstration of the model's utility, we study low-order harmonic generation in mid-infrared optical filaments.