Time-Domain Simulation of Electromagnetic Wave Propagation in Two-Level Dielectrics

Author

Paul, John ; Christopoulos, Christos ; Thomas, David W P

Author_Institution

George Green Inst. for Electromagn. Res., Nottingham

fYear

2007

fDate

15-17 Oct. 2007

Firstpage

1

Lastpage

4

Abstract

A method for the time-domain simulation of electromagnetic wave propagation in two-level dielectric media is developed. The technique is based on incorporating into transmission-line modelling (TLM) a semi-classical model to simulate the quantum properties of a two-level medium. The approach is accurate and free from numerical instabilities. The approach was validated for the small-signal case by a demonstration of the correspondence principle with the classical Lorentz oscillator. Results obtained for propagation in the two-level medium are in agreement with previous studies in the literature. In addition, results are shown demonstrating self-induced transparency (SIT) and laser oscillations.

Keywords

dielectric materials; electromagnetic wave propagation; optical materials; self-induced transparency; solid lasers; classical Lorentz oscillator; correspondence principle; electromagnetic wave propagation; laser action; laser oscillations; optical absorption; quantum properties; self-induced transparency; semiclassical model; time-domain simulation; transmission-line modelling; two-level dielectrics; two-level medium; Dielectrics; Differential equations; Electromagnetic propagation; Electromagnetic scattering; Finite difference methods; Optical propagation; Oscillators; Polarization; Time domain analysis; Transmission lines; Bloch equations; Classical Lorentz oscillator; Nonlinear dielectrics; Time-domain electromagnetics; two-level quantum medium;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electromagnetics in Time-Domain, 2007. CEM-TD 2007. Workshop on

Conference_Location

Perugia

Print_ISBN

978-1-4244-1170-2

Electronic_ISBN

978-1-4244-1170-2

Type

conf

DOI

10.1109/CEMTD.2007.4373547

Filename

4373547