Spatial evolution of short pulses under coherent population trapping

Details Spatial evolution of short pulses under coherent population trapping Spatial evolution of short pulses under coherent population trapping

2001-03-23

arxiv.org/abs/quant-ph/0103130v2

Phys. Rev. A 64, 053811 (2001)

Physics

Quantum Physics

16 pages revtex style, 7 EPS figures, accepted to Physical Review A

Scientific paper

10.1103/PhysRevA.64.053811

Spatial and temporal evolution is studied of two powerful short laser pulses having different wavelengths and interacting with a dense three-level Lambda-type optical medium under coherent population trapping. A general case of unequal oscillator strengths of the transitions is considered. Durations of the probe pulse and the coupling pulse $T_{1,2}$ ($T_2>T_1$) are assumed to be shorter than any of the relevant atomic relaxation times. We propose analytical and numerical solutions of a self-consistent set of coupled Schr\"{o}dinger equations and reduced wave equations in the adiabatic limit with the account of the first non-adiabatic correction. The adiabaticity criterion is also discussed with the account of the pulse propagation. The dynamics of propagation is found to be strongly dependent on the ratio of the transition oscillator strengths. It is shown that envelopes of the pulses slightly change throughout the medium length at the initial stage of propagation. This distance can be large compared to the one-photon resonant absorption length. Eventually, the probe pulse is completely reemitted into the coupling pulse during propagation. The effect of localization of the atomic coherence has been observed similar to the one predicted by Fleischhauer and Lukin (PRL, {\bf 84}, 5094 (2000).

Affiliated with

Also associated with

No associations

Rating

Spatial evolution of short pulses under coherent population trapping does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spatial evolution of short pulses under coherent population trapping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial evolution of short pulses under coherent population trapping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-193067