ACTA PHOTONICA SINICA

Modulation of Chirped Ultrashort Pulse in Dense and Resonant Medium

李斌 Li Bin, 余向阳 YU Xiangyang, 陈国杰 CHEN Guojie, 陈伟成 CHEN Weicheng

Published Jan 1, 2013• 0 citations

Abstract

According to the semi-classical theory of light-matter interaction,the Bloch equations with chirped terms were established in a dense two-level medium,and an accurate and efficient fourth-order Runge-Kutta method was applied for solving the equations.After numerical simulation,the interactions between a chirped ultra-short pulse and dense resonant two-level medium were investigated,and the influences of local-field effects and chirp on Bloch vectors were gained.The numerical results show that,the evolutions of Bloch vectors and the final state of inversion are strongly modulated by the local-field effects correction coefficient and chirp parameter,which provides a method to achieve stable population inversion of control by adjusting the linear chirp parameter and local-field correction coefficient.

DOI: 10.3788/gzxb20134205.0531

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