Details
| Original language | English |
|---|---|
| Pages | 107-108 |
| Number of pages | 2 |
| Publication status | Published - 2000 |
| Event | Quantum Electronics and Laser Science Conference (QELS 2000) - San Francisco, CA, USA Duration: 7 May 2000 → 12 May 2000 |
Conference
| Conference | Quantum Electronics and Laser Science Conference (QELS 2000) |
|---|---|
| Abbreviated title | QELS 2000 |
| City | San Francisco, CA, USA |
| Period | 7 May 2000 → 12 May 2000 |
Abstract
In a Λ-type three level system with one laser field coupling the upper level to one of the two ground states exactly on resonance and the other laser field probing the second optical transition, both fields undergo, depending on their Rabi frequencies, a very rapidly varying phaseshift with a simultaneously vanishing absorption. While the probe field dispersion spectrum consists of the normal refractive index profile and a very narrow inverted structure at the two-photon resonance the coupling field dispersion only shows the central structure resulting from the two photon interaction. This parametric dispersion of the coupling field depends on the Rabi frequencies of the involved fields Ωcoupl and Ωprobe and the relaxation time of the ground state coherence. An analytical expression for the parametric dispersion is derived from a semiclassical model. In this model, the authors neglect direct population transfer between the groundstates and identify the dephasing rate of the ground state coherence with the rate atoms are injected into the interaction region, which is reasonable for an atomic beam experiment.
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2000. 107-108 Paper presented at Quantum Electronics and Laser Science Conference (QELS 2000), San Francisco, CA, USA.
Research output: Contribution to conference › Paper › Research › peer review
}
TY - CONF
T1 - Heterodyne measurement of parametric phaseshift in electromagnetically induced transparencies
AU - Mueller, M.
AU - Homann, F.
AU - Rinkleff, R. H.
AU - Danzmann, K.
PY - 2000
Y1 - 2000
N2 - In a Λ-type three level system with one laser field coupling the upper level to one of the two ground states exactly on resonance and the other laser field probing the second optical transition, both fields undergo, depending on their Rabi frequencies, a very rapidly varying phaseshift with a simultaneously vanishing absorption. While the probe field dispersion spectrum consists of the normal refractive index profile and a very narrow inverted structure at the two-photon resonance the coupling field dispersion only shows the central structure resulting from the two photon interaction. This parametric dispersion of the coupling field depends on the Rabi frequencies of the involved fields Ωcoupl and Ωprobe and the relaxation time of the ground state coherence. An analytical expression for the parametric dispersion is derived from a semiclassical model. In this model, the authors neglect direct population transfer between the groundstates and identify the dephasing rate of the ground state coherence with the rate atoms are injected into the interaction region, which is reasonable for an atomic beam experiment.
AB - In a Λ-type three level system with one laser field coupling the upper level to one of the two ground states exactly on resonance and the other laser field probing the second optical transition, both fields undergo, depending on their Rabi frequencies, a very rapidly varying phaseshift with a simultaneously vanishing absorption. While the probe field dispersion spectrum consists of the normal refractive index profile and a very narrow inverted structure at the two-photon resonance the coupling field dispersion only shows the central structure resulting from the two photon interaction. This parametric dispersion of the coupling field depends on the Rabi frequencies of the involved fields Ωcoupl and Ωprobe and the relaxation time of the ground state coherence. An analytical expression for the parametric dispersion is derived from a semiclassical model. In this model, the authors neglect direct population transfer between the groundstates and identify the dephasing rate of the ground state coherence with the rate atoms are injected into the interaction region, which is reasonable for an atomic beam experiment.
UR - http://www.scopus.com/inward/record.url?scp=0034540238&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:0034540238
SP - 107
EP - 108
T2 - Quantum Electronics and Laser Science Conference (QELS 2000)
Y2 - 7 May 2000 through 12 May 2000
ER -