EIT enhanced self-Kerr nonlinearity in the three-level lambda system under Doppler broadening
Keywords:Kerr nonlinearity, atomic coherence, electromagnetically induced transparency
AbstractUsing 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.
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.
How to Cite
LicenseAuthors who publish with CIP agree with the following terms:
- The manuscript is not under consideration for publication elsewhere. When a manuscript is accepted for publication, the author agrees to automatic transfer of the copyright to the editorial office.
- The manuscript should not be published elsewhere in any language without the consent of the copyright holders. Authors have the right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of their work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are encouraged to post their work online (e.g., in institutional repositories or on their websites) prior to or during the submission process, as it can lead to productive exchanges or/and greater number of citation to the to-be-published work (See The Effect of Open Access).