Share Email Print
cover

Proceedings Paper

Study of the rationality upon adopting a two-level model to deal with interaction between a long-pulse, circularly-polarized laser and sodium atoms
Author(s): Lei Ke; Youkuan Li
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper we adopt a full density matrix treatment to deal with the interaction between long-pulse, circularly-polarized light and the sodium atoms. The time evolution curve of every 24 sub-state's population probability can be obtained by solving the Bloch equation of twenty-four hyperfine levels. We find that during the long pulse time(more than 100 ns), the final transition is only between the sub-level 3S1/2 (2,2) and 3P3/2 (3,3).What is more, the probability of the excited sub-state has become steady. Then we start the comparison between the 2-level model and the full density matrix method to show the rationality of rate equation and 2-level model for the long pulse, circularly-polarized light. We prove the rationality upon adopting 2-level model to deal with interaction between long-pulse, circularly-polarized light and the sodium atoms and thus bring the convenience to solve the interaction. Key words: Sodium beacon, long pulse, circularly polarized light, 2-level atoms, adaptive optics

Paper Details

Date Published: 1 October 2009
PDF: 10 pages
Proc. SPIE 7476, Optics in Atmospheric Propagation and Adaptive Systems XII, 74760P (1 October 2009); doi: 10.1117/12.829495
Show Author Affiliations
Lei Ke, Institute of Applied Physics and Computational Mathematics (China)
Youkuan Li, Institute of Applied Physics and Computational Mathematics (China)


Published in SPIE Proceedings Vol. 7476:
Optics in Atmospheric Propagation and Adaptive Systems XII
Anton Kohnle; Karin Stein; John D. Gonglewski, Editor(s)

© SPIE. Terms of Use
Back to Top