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Proceedings Paper

Manifestation of high-rank polarization moments in the fluorescence CPT resonance
Author(s): Emilia A. Alipieva; Elena T. Taskova; Sanka V. Gateva; Georgi Tz. Todorov
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Paper Abstract

Coherent Population Trapping (CPT) resonance obtained with linearly polarized laser beam through magnetic field sweep (Hanle configuration) was investigated in 87Rb D1 line. Influence of the coherence due to high-rank polarization moment (hexadecapole moment), created in the medium, on the CPT resonance shape was calculated and experimentally detected in fluorescence. It was observed as an inverted structure at a high power of excitation. To distinguish resonances due to coherence between Zeeman sub-levels with ΔmF=2 from that with ΔmF=4, the Larmour frequency ωLmodulated by applying an a.c. magnetic field (a.c. MF). Resonance signal at frequency corresponding to 4ωL observed in a fluorescence, and after lock-in on the frequency corresponding to frequency difference between sub-levels ΔmF=4.

Paper Details

Date Published: 19 December 2008
PDF: 8 pages
Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70270F (19 December 2008); doi: 10.1117/12.822453
Show Author Affiliations
Emilia A. Alipieva, Institute of Electronics (Bulgaria)
Elena T. Taskova, Institute of Electronics (Bulgaria)
Sanka V. Gateva, Institute of Electronics (Bulgaria)
Georgi Tz. Todorov, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 7027:
15th International School on Quantum Electronics: Laser Physics and Applications
Tanja Dreischuh; Elena Taskova; Ekaterina Borisova; Alexander Serafetinides, Editor(s)

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