Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Near-resonant effects on laser pulse propagation in atomic laser isotope separation
Yasukazu Izawa, Keiji Nomaru, Naglaa El Sayed ALY, K. Kou, Hideaki Niki, Sadao Nakai, Yen‐Wei Chen, Chihiro Yamanaka
Abstract
A computer simulation code to treat atomic excitation and laser beam propagation simultaneously in an atomic laser isotope separation system has been developed. The three- level Bloch-Maxwell equations are solved numerically to analyze the change of pulse shapes, the modification of laser frequencies and the time-varying atomic populations. The near- resonant effects on the propagation of frequency chirped and non-chirped laser pulses have been analyzed. It was found that there are serious differences in pulse shapes, frequency modifications and propagation velocities between laser pulses with and without chirping.