Manifestation of high-rank polarization moments in the fluorescence CPT resonance

Emilia A. Alipieva; Elena T. Taskova; Sanka V. Gateva; Georgi Tz. Todorov

doi:10.1117/12.822453

19 December 2008 Manifestation of high-rank polarization moments in the fluorescence CPT resonance

Emilia A. Alipieva, Elena T. Taskova, Sanka V. Gateva, Georgi Tz. Todorov

Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70270F (2008) https://doi.org/10.1117/12.822453
Event: 15th International School on Quantum Electronics: Laser Physics and Applications, 2008, Bourgas, Bulgaria

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 Δm_F=2 from that with Δm_F=4, the Larmour frequency ω_Lmodulated by applying an a.c. magnetic field (a.c. MF). Resonance signal at frequency corresponding to 4ω_L observed in a fluorescence, and after lock-in on the frequency corresponding to frequency difference between sub-levels Δm_F=4.

Citation Download Citation

Emilia A. Alipieva, Elena T. Taskova, Sanka V. Gateva, and Georgi Tz. Todorov "Manifestation of high-rank polarization moments in the fluorescence CPT resonance", Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70270F (19 December 2008); https://doi.org/10.1117/12.822453

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