Back to Search
Start Over
Electromagnetically induced transparency in an inhomogeneously broadenedΛtransition with multiple excited levels
- Source :
- Physical Review A : Atomic, molecular, and optical physics [1990-2015], Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2011, 83, pp.053809, Physical Review A, Physical Review A, American Physical Society, 2011, 83, pp.053809
- Publication Year :
- 2011
- Publisher :
- American Physical Society (APS), 2011.
-
Abstract
- Electromagnetically induced transparency (EIT) has mainly been modeled for three-level systems. In particular, considerable interest has been dedicated to the $\ensuremath{\Lambda}$ configuration, with two ground states and one excited state. However, in the alkali-metal atoms, which are commonly used, the hyperfine interaction in the excited state introduces several levels which simultaneously participate in the scattering process. When the Doppler broadening is comparable with the hyperfine splitting in the upper state, the three-level $\ensuremath{\Lambda}$ model does not reproduce the experimental results. Here we theoretically investigate the EIT in a hot vapor of alkali-metal atoms and demonstrate that it can be strongly reduced by the presence of multiple excited levels. Given this model, we also show that well-designed optical pumping enables us to significantly recover the transparency.
- Subjects :
- Electromagnetically induced transparency
FOS: Physical sciences
Lambda
01 natural sciences
010309 optics
Optical pumping
coherent effect
[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]
quantum information
0103 physical sciences
Physics::Atomic Physics
Quantum information
010306 general physics
Hyperfine structure
Physics
Quantum Physics
EIT
Scattering
Atomic and Molecular Physics, and Optics
Condensed Matter - Other Condensed Matter
[PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
Excited state
Atomic physics
Quantum Physics (quant-ph)
Other Condensed Matter (cond-mat.other)
Doppler broadening
Subjects
Details
- ISSN :
- 10941622 and 10502947
- Volume :
- 83
- Database :
- OpenAIRE
- Journal :
- Physical Review A
- Accession number :
- edsair.doi.dedup.....05caaf12f79ec1506c8305826022d0bd