Enhanced Kerr nonlinear effect of Raman transition in a Λ-type three-level atomic system | Zendy

Haibin Wu | Zendy; Chang Hong | Zendy; Jie Ma | Zendy; Changde Xie | Zendy; Hai Wang | Zendy

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Enhanced Kerr nonlinear effect of Raman transition in a Λ-type three-level atomic system

Author(s) -

Haibin Wu,

Chang Hong,

Jie Ma,

Changde Xie,

Hai Wang

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.3632

Subject(s) - raman spectroscopy , kerr effect , nonlinear system , atomic system , ground state , physics , modulation (music) , zero (linguistics) , raman scattering , phase transition , population , condensed matter physics , atomic physics , materials science , molecular physics , quantum mechanics , acoustics , linguistics , philosophy , demography , sociology

We report a theoretical study of linear and nonlinear susceptibilities of Raman transition in a Λ-type three-level atomic system. In the Raman transition, if t he population of atoms is all prepared in the ground state which interacts with the control light, the linear susceptibility equals zero, while the third-order nonlinear susceptibility does not equal zero. By decreasing the nonradiative dec ay rate γ12 between the two ground states of the atoms, the Kerr no nlinear refractive index for cross-phase modulation can be significantly enhance d.

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