Electromagnetically induced two-photon transparency in a four-level system of rubidium atom

Dong Wang; Jinyue Gao; Jihua Xu; Giuseppe C. La Rocca; F. Bassani

doi:10.1117/12.425120

9 April 2001 Electromagnetically induced two-photon transparency in a four-level system of rubidium atom

Dong Wang, Jinyue Gao, Jihua Xu, Giuseppe C. La Rocca, F. Bassani

Proceedings Volume 4397, 11th International School on Quantum Electronics: Laser Physics and Applications; (2001) https://doi.org/10.1117/12.425120
Event: 11th International School on Quantum Electronics: Laser Physics and Applications, 2000, Varna, Bulgaria

Abstract

An experimental study of electromagnetically induced two- photon transparency (EITT) in rubidium atomic vapor at room temperature is presented. A four level system is considered, involving the two-photon absorption process 5S_1/2 to 8S_1/2 via an intermediate state 5P_3/2, and the single- photon control process 5P_3/2 to 5D_5/2. A controlling pump laser beam is employed to coherently couple the 5P_3/2 and 5D_5/2 states, thus producing two dressed intermediate states, which give rise to destructive interference in the two-photon transition. Fluorescence from 8S_1/2 to 5P_1/2 is used to monitor the 5S_1/2(Fequals3) to 8S_1/2(Fequals3) two-photon absorption. An induced two-photon transparency of about 80% has been obtained at resonance; the experimental results are in good agreement with the general theory of Agarwal, when the appropriate spectroscopic parameters are employed.

Citation Download Citation

Dong Wang, Jinyue Gao, Jihua Xu, Giuseppe C. La Rocca, and F. Bassani "Electromagnetically induced two-photon transparency in a four-level system of rubidium atom", Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); https://doi.org/10.1117/12.425120

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