We present an experimental demonstration of electromagnetically induced two-photon transparency (EITT) in room temperature rubidium vapor. The 8S(1/2) to 5P(1/2) fluorescence is used to monitor the 5S(1/2)(F = 3)to 8S(1/2)(F = 3) two-photon absorption near resonance with the intermediate state 5P(3/2). A controlling pump laser beam is employed to coherently couple the 5P(3/2) and 5D(5/2) states, thus producing tw dressed intermediate states which give rise to destructive interference in the two-photon transition. An induced two-photon transparency of about 80% has been obtained at resonance; our experimental findings are in good agreement with the general theory of Agarwal et al. (Phys. Rev. Lett., 77 (1996) 1039), when the appropriate spectroscopic parameters are used.
Electromagnetically induced two-photon transparency in rubidium atoms
LA ROCCA, Giuseppe Carlo;
2001
Abstract
We present an experimental demonstration of electromagnetically induced two-photon transparency (EITT) in room temperature rubidium vapor. The 8S(1/2) to 5P(1/2) fluorescence is used to monitor the 5S(1/2)(F = 3)to 8S(1/2)(F = 3) two-photon absorption near resonance with the intermediate state 5P(3/2). A controlling pump laser beam is employed to coherently couple the 5P(3/2) and 5D(5/2) states, thus producing tw dressed intermediate states which give rise to destructive interference in the two-photon transition. An induced two-photon transparency of about 80% has been obtained at resonance; our experimental findings are in good agreement with the general theory of Agarwal et al. (Phys. Rev. Lett., 77 (1996) 1039), when the appropriate spectroscopic parameters are used.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
