Coherent Effects for Electron and Photon Waves

Optics and Spectroscopy

, Volume 99, Issue 4, pp 517-521

First online:

Propagation of a few-cycle laser pulse in a V-type three-level system

  • X. SongAffiliated withLaboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics
  • , S. GongAffiliated withLaboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics
  • , Z. XuAffiliated withLaboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics

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Abstract

Propagation of a few-cycle laser pulse in a V-type three-level system (fine structure levels of rubidium) is investigated numerically. The full three-level Maxwell-Bloch equations without the rotating wave approximation and the standing slowly varying envelope approximation are solved by using a finite-difference time-domain method. It is shown that, when the usual unequal oscillator strengths are considered, self-induced transparency cannot be recovered and higher spectral components can be produced even for small-area pulses.