Volume 54, Number 4, May 2001
|Page(s)||456 - 460|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics and fluid mechanics|
|Published online||01 December 2003|
Electromagnetically induced two-photon transparency in rubidium atoms
Department of Physics, Jilin
University - Changchun, PRC
2 INFM, Scuola Normale Superiore - Piazza dei Cavalieri 7, 56126 Pisa, Italy
3 Dipartimento di Fisica, Università di Salerno - 84081 Baronissi (Sa), Italy
Accepted: 7 March 2001
We present an experimental demonstration of electromagnetically induced two-photon transparency (EITT) in room temperature rubidium vapor. The to fluorescence is used to monitor the to two-photon absorption near resonance with the intermediate state . A controlling pump laser beam is employed to coherently couple the and states, thus producing two dressed intermediate states which give rise to destructive interference in the two-photon transition. An induced two-photon transparency of about has been obtained at resonance; our experimental findings are in good agreement with the general theory of Agarwal et al. (Phys. Rev. Lett., bf 77 (1996) 1039), when the appropriate spectroscopic parameters are used.
PACS: 42.50.-p – Quantum optics / 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light / 42.50.Hz – Strong-field excitation of optical transitions in quantum systems; multi-photon processes; dynamic Stark shift
© EDP Sciences, 2001
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