EIT enhanced self-Kerr nonlinearity in the three-level lambda system under Doppler broadening
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https://doi.org/10.15625/0868-3166/24/3/3915Keywords:
Kerr nonlinearity, atomic coherence, electromagnetically induced transparencyAbstract
Using density-matrix theory, an analytical expression of the self-Kerr nonlinear coefficient of a three-level lambda EIT medium for a weak probe light is derived. Influences of the coupling light and Doppler broadening on the self-Kerr coefficient are investigated and compared to experimental observation with a good agreement. The self-Kerr nonlinearity is basically modified and greatly enhanced in the spectral region corresponding to EIT transparent window. Furthermore, sign, slope, and magnitude of the self-Kerr coefficient can be controlled with frequency and intensity of the coupling light and temperature. Such controllable Kerr nonlinearity can find interesting applications in optoelectronic devices working with low-light intensity.Downloads
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K.J. Boller, A. Imamoglu, S.E. Harris, Observation of electromagnetically induced transparency, Phys. Rev. Lett., 66 (1991) 2593.
S.E. Harris, J.E. Field, and A. Imamoglu, Nonlinear optical processes using electromagnetically induced transparency, Phys. Rev. Lett., 64, (1990) 1107.
S.E. Harris and L.V. Hau, Nonlinear optics at low light levels, Phys. Rev. Lett., 82 (1999) 4611.
H. Schmidt, and A. Imamogdlu, Giant Kerr nonlinearities obtained by electromagnetically induced transparency, Opt. Lett., 21 (1996) 1936.
V. Tikhonenko, J. Christou, and B. Luther-Davies, Three dimensional bright spatial soliton collision and fusion in a saturable nonlinear medium, Phys. Rev. Lett., 76 (1996) 2698.
Y. Li, and M. Xiao, Enhancement of nondegenerate four-wave mixing based on electromagnetically induced transparency in rubidium atoms, Opt. Lett., 21 (1996) 1064.
M.D. Lukin, S.F. Yelin, and M. Fleischhauer, Entanglement of atomic ensembles by trapping correlated photon states, Phys. Rev. Lett., 84 (2000) 4232.
H. Wang, D. Goorskey, and M. Xiao, Enhanced Kerr nonlinearity via atomic coherence in a three-level atomic system, Phys.Rev.Lett., 87 (2001) 073601.
A. Joshi and Min Xiao, Controlling nonlinear optical processes in multi-level atomic systems, Progress in Optics, Ed. E. Wolf, 49 (2006) 97-175.
Doai Le Van, Trong Pham Van, Khoa Dinh Xuan, and Bang Nguyen Huy, Electromagnetically induced transparency in fivelevel cascade scheme of 85Rb atoms: An analytical approach, Optik Int.J. Light Electron Opt. (2014), http://dx.doi.org/10.1016/j.ijleo.2014.01.080.
M. O. Scully and M. S. Zubairy, Quantum optics, Cambridge University Press (2001).
Daniel Adam Steck, Rb87 D Line Data: http://steck.us/alkalidata.
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