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

verfasst von

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.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)
Belarus Academy of Sciences
Belarusian State University
Bulgarian Academy of Sciences (BAS)
Taschkenter Staatliche Technische Universität (TSTU)

Typ

Artikel

Journal

Physical Review A

Band

108

ISSN

2469-9926

Publikationsdatum

12.07.2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2301.04531 (Zugang: Offen)
https://doi.org/10.1103/PhysRevA.108.013506 (Zugang: Geschlossen)