Nonlinear polarization and ionization in O2: metastable electronic state model

Abstract

We present a computational model for the nonlinear response of molecular oxygen exposed to strong mid-wavelength and long-wavelength infrared optical fields. Based on a non-Hermitian approach utilizing metastable electronic states, the nonlinear polarization and strong-field ionization are described as intimately connected properties. Good agreement with the measured nonlinear index and ionization rates is shown, and parameterized response functions are provided to facilitate applications in large-scale simulations of infrared optical pulses interacting with gaseous media.

Document Details

Document Type
Pub Defense Publication
Publication Date
Aug 10, 2020
Source ID
10.1364/oe.399719

Entities

People

  • Agnieszka Jaron-Becker
  • Andreas Becker
  • Jonathan Heinz
  • Miroslav Kolesik
  • Ran Reiff
  • Tennesse Joyce

Organizations

  • Air Force Office of Scientific Research

Tags

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Quantum Chemistry
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics