Dispersion in a four level N-scheme atomic system with co- and counter- propagating beams

J. P. Davis; F. A. Narducci

doi:10.1117/12.914722

8 February 2012 Dispersion in a four level N-scheme atomic system with co- and counter- propagating beams

J. P. Davis, F. A. Narducci

Proceedings Volume 8273, Advances in Slow and Fast Light V; 82730R (2012) https://doi.org/10.1117/12.914722
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We motivate the study of an 'N-scheme' atomic system for the case of a bi-directional probe field. We derive the equations of motion. The equations were expanded in order of the counter-propagating field strength over the co-propagating field strength. We solve the equations numerically in steady state in a perturbative manner. The zeroth order solutions describe the dispersion and absorption of the co-propagating field, while the first order solutions describe the dispersion and absorption of the counter-propagating field. We investigate the solutions in two temperature regimes for a variety of field strengths. Regimes of similar dispersion for the co- and counter-propagating fields were found, as well as regimes of opposite behavior. In most cases, absorption of the fields is still a problem.

Citation Download Citation

J. P. Davis and F. A. Narducci "Dispersion in a four level N-scheme atomic system with co- and counter- propagating beams", Proc. SPIE 8273, Advances in Slow and Fast Light V, 82730R (8 February 2012); https://doi.org/10.1117/12.914722

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