Level-degeneracy effects in resonant nonlinear phenomena: Three-level atomic model |
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| Authors: | Govind P Agrawal |
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| Institution: | (1) AT & T Bell Laboratories, 07974 Murray Hill, New Jersey, USA |
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| Abstract: | The role of level degeneracy in resonant nonlinear phenomena is examined by considering theJ=1 →J=0 atomic transition. The atomic medium is modelled as a homogeneously broadened three-level system and a closed-form expression
for the medium susceptibility is obtained. It is used to discuss several nonlinear phenomena such as saturated absorption,
optical bistability, and phase conjugation. The two-photon-induced coupling of the ground-state Zeeman sublevels leads to
interesting polarization effects. |
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| Keywords: | Level degeneracy resonant nonlinear phenomena three-level atomic model atomic transition saturated absorption optical bistability phase conjugation |
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