Unified model for a nonlinear pulse propagation in composites and optimization of THz generation

authored by
A. Husakou, O. Fedotova, R. Rusetsky, O. Khasanov, T. Smirnova, A. Fedotov, T. Apostolova, I. Babushkin, U. Sapaev
Abstract

We describe a unified numerical model which allows fast and accurate simulation of nonlinear light propagation in nanoparticle composites, including various effects such as group velocity dispersion, second- and third-order nonlinearity, quasi-free-carrier formation and plasma contributions, exciton dynamics, scattering, and so on. A developed software package, Simulator of Light Propagation in Composites (solpic), is made available for the community. Using this model, we analyze and optimize efficient generation of terahertz (THz) radiation by two-color pulses in ZnO-fused-silica composite, predicting an efficiency of 3%. We compare the role of various nonlinear effects contributing to the frequency conversion and show that the optimum conditions of THz generation differ from those expected intuitively.

Organisation(s)
Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
External Organisation(s)
Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy im Forschungsbund Berlin e.V. (MBI)
Belarus Academy of Sciences
Belarusian State University
Bulgarian Academy of Sciences (BAS)
Tashkent State Technical University (TSTU)
Type
Article
Journal
Physical Review A
Volume
108
ISSN
2469-9926
Publication date
12.07.2023
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Electronic version(s)
https://doi.org/10.48550/arXiv.2301.04531 (Access: Open)
https://doi.org/10.1103/PhysRevA.108.013506 (Access: Closed)