Power dependence of the coherent-population-trapping resonances registered in fluorescence and transmission: Resonance-width narrowing effects

Journal Article · Mon Aug 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.025805· OSTI ID:20718251

Gateva, S; Alipieva, E; Taskova, E ^[1]

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1. Institute of Electronics, Bulg. Acad. Sc., 72 Tzarigradsko Chaussee, 1784 Sofia (Bulgaria)

The investigation of the coherent-population-trapping (CPT) resonance on the degenerate two-level system of the (F{sub g}=2{yields}F{sub e}=1) transition of the {sup 87}Rb D{sub 1} line by means of a Hanle effect configuration in an uncoated vacuum cell [Opt. Lett. 28, 1817 (2003)] has shown that the measured in fluorescence resonance has a complex shape--a very narrow (about 1 mG) structure superimposed on a broader one (about few tens of mG). In this work, the dependence of the width and amplitude of the CPT resonance structures are measured at different laser power densities when the registration is in fluorescence and transmission. While the narrow resonance width does not change within the limits of the accuracy of our measurements, the wide resonance width dependence is complex and is different in fluorescence and transmission. The origins of the observed resonance width narrowing of the CPT resonance structures registered in fluorescence and transmission are discussed.

• OSTI ID: 20718251
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
AMPLITUDES
FLUORESCENCE
LASER RADIATION
LIGHT TRANSMISSION
LINE NARROWING
OPTICS
POWER DENSITY
QUANTUM MECHANICS
RADIATION PRESSURE
RESONANCE
RUBIDIUM
RUBIDIUM 87
TRAPPING