# Optical Bloch modeling of few-cycle laser-induced electron dynamics in dielectrics

## TL;DR

This paper introduces an Optical Bloch Equation-based model to simulate electron dynamics in dielectrics under few-cycle laser pulses, capturing ionization, relaxation, and nonlinear polarization effects for various materials.

## Contribution

It presents a comprehensive, adaptable model that accurately describes ultrafast electron dynamics and harmonic generation in dielectrics driven by few-cycle lasers.

## Key findings

- Successfully models electron dynamics in dielectrics under ultrashort laser pulses
- Captures harmonic emission with correct symmetry selection rules
- Applicable to both centrosymmetric and non-centrosymmetric materials

## Abstract

We develop a new model of laser-matter interaction based on Optical Bloch Equations, which includes photo-ionization, impact ionization, and various relaxation processes typical of dielectric materials. This approach is able to describe the temporal evolution of the electron dynamics in the conduction band driven by few-cycle laser pulses of any wavelength. Moreover, the nonlinear polarization response of both centrosymmetric and non-centrosymmetric materials can be described while ensuring the proper selection rules for the harmonics emission.