Abstract
This paper presents a theoretical study of the time-dependent cross-phase-modulation in Rb87. A four-level system in the N configuration is constructed by making use of the hyperfine sublevels present in the rubidium D lines. It is shown that a large transient absorption is present on the electromagnetically induced transparency transition when that field is suddenly turned on. Furthermore, the magnitude and rise time of the cross-phase-modulation are shown to be inversely proportional to each other. We also construct the first-order nonadiabatic corrections to the atomic evolution and demonstrate how these affect slow-light pulse propagation in the atomic ensemble.
Original language | English |
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Article number | 023815 |
Number of pages | 7 |
Journal | Physical Review A: Atomic, Molecular and Optical Physics |
Volume | 79 |
Issue number | 2 |
DOIs | |
Publication status | Published - 11 Feb 2009 |
Keywords
- hyperfine structure
- optical modulation
- phase modulation
- quantum optics
- rubidium
- self-induced transparency
- ELECTROMAGNETICALLY INDUCED TRANSPARENCY
- POPULATION TRANSFER
- LAMBDA-SYSTEM
- ATOMIC GAS
- TRANSITIONS
- HISTORIES