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Quasisimultons in thermal atomic vapors [dataset] Open Access
The propagation of two-color laser fields through optically thick atomic ensembles is studied. We demonstrate how the interaction between these two fields spawns the formation of copropagating, two-color solitonlike pulses akin to the simultons found by Konopnicki and Eberly [Phys. Rev. A 24, 2567 (1981)]. For the particular case of thermal Rb atoms exposed to a combination of a weak cw laser field resonant on the D1 transition and a strong sub-ns laser pulse resonant on the D2 transition, simulton formation is initiated by an interplay between the 5s 1/2 − 5p 1/2 and 5s 1/2 − 5p 3/2 coherences. The interplay amplifies the D1 field at the arrival of the D2 pulse, producing a sech-squared pulse with a length of less than 10 μm. This amplification is demonstrated in a time-resolved measurement of the light transmitted through a thin thermal cell. We find good agreement between experiment and a model that includes the hyperfine structure of the relevant levels. With the addition of Rydberg dressing, quasisimultons may offer interesting prospects for strong photon-photon interactions in a robust environment.
- Resource type
Contact person: Potvliege, Robert 1
Ogden, Thomas P. 1
Whittaker, K.A. 1
Keaveney, J. 1
Adams, C.S. 1
Wrathmall, S.A. 1
1 Durham University
Engineering and Physical Sciences Research Council
- Research methods
- Other description
The data was used to create panel (a) of fig. 2 in our paper. First column: power; Second column: time; Third column: signal.
- Change in transmission
Effects of atomic coherence on light propagation
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- Creative Commons Attribution 4.0 International (CC BY)
- Date Created
- R.M.A. Potvliege
- Date Uploaded
- 6 March 2020, 15:03:19
- Date Modified
- 9 March 2020, 19:03:52
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