1Key Laboratory for Quantum Optics, Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 2Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208, USA
Interference of a Narrowband Biphoton with Double Electromagnetically Induced Transparency in an N-Type System
1Key Laboratory for Quantum Optics, Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 2Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208, USA
摘要We predict the possibility of the interference of narrow-band biphotons generated by spontaneous four-wave mixing with double electromagnetically induced transparency configuration in cold atoms. In an N-type four-level system, an auxiliary optical field Ωm can create double transparency windows for anti-Stokes photons. When the slow light effects in the double transparency windows are very strong, two four-wave mixing channels could exist due to the splitting of the phase matching condition. The biphoton generated from the two four-wave mixing channels can cause interference and shows Rabi oscillations in two-photon correlation. This interference mechanism will complement the understanding of interference at the two-photon level.
Abstract：We predict the possibility of the interference of narrow-band biphotons generated by spontaneous four-wave mixing with double electromagnetically induced transparency configuration in cold atoms. In an N-type four-level system, an auxiliary optical field Ωm can create double transparency windows for anti-Stokes photons. When the slow light effects in the double transparency windows are very strong, two four-wave mixing channels could exist due to the splitting of the phase matching condition. The biphoton generated from the two four-wave mixing channels can cause interference and shows Rabi oscillations in two-photon correlation. This interference mechanism will complement the understanding of interference at the two-photon level.
CHEN Peng,QIAN Jun,CHEN Dong-Yuan,HU Zheng-Feng**,WANG Yu-Zhu**. Interference of a Narrowband Biphoton with Double Electromagnetically Induced Transparency in an N-Type System[J]. 中国物理快报, 2012, 29(4): 44202-044202.
CHEN Peng,QIAN Jun,CHEN Dong-Yuan,HU Zheng-Feng**,WANG Yu-Zhu**. Interference of a Narrowband Biphoton with Double Electromagnetically Induced Transparency in an N-Type System. Chin. Phys. Lett., 2012, 29(4): 44202-044202.
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