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Proceedings Paper

Open system CPT with spatially separated pump and probe beams
Author(s): B. M. Jelenković; D. Arsenović; Z. Grujić; M. Radonjić; M. Mijailović
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Paper Abstract

We calculated line-shapes of the coherent population trapping (CPT) for the open transition in 87Rb by solving time-dependent optical Bloch equations and averaging results for the total excited state populations over atomic trajectories and velocities, while taking into account incident angles to the laser beam. Comparison with experiment produces good agreement for the laser intensity dependence of the CPT line-widths when the laser transverse beam profile is Gaussian. This theoretical model was used to calculate the probe laser CPT in the case of spatially separated pump beam. The probe beam is placed inside the cylindrically-shaped pump beam. The calculations as well as measurements show narrowing of the Hanle resonance due to Ramsey effect.

Paper Details

Date Published: 19 December 2008
PDF: 10 pages
Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70270D (19 December 2008); doi: 10.1117/12.822450
Show Author Affiliations
B. M. Jelenković, Institute of Physics (Serbia)
D. Arsenović, Institute of Physics (Serbia)
Z. Grujić, Institute of Physics (Serbia)
M. Radonjić, Institute of Physics (Serbia)
M. Mijailović, Institute of Physics (Serbia)


Published in SPIE Proceedings Vol. 7027:
15th International School on Quantum Electronics: Laser Physics and Applications

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