Title :
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
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;
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
DOI :
10.1109/CEMTD.2007.4373547
