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.
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