Phase modulation induced by cooperative effects in electromagnetically induced transparency
- We analyze the influence of dipole-dipole interactions in an electromagnetically induced transparency set up for a density at the onset of cooperative effects. To this end, we include mean-field models for the influence of local-field corrections and radiation trapping into our calculation. We show both analytically and numerically that the polarization contribution to the local field strongly modulates the phase of a weak pulse. We give an intuitive explanation for this local-field-induced phase modulation and demonstrate that it distinctively differs from the nonlinear self-phase-modulation that a strong pulse experiences in a Kerr medium.
| Author: | Robert Fleischhaker, Jörg Evers, Tarak N. Dey |
|---|---|
| DOI: | https://doi.org/10.1103/PhysRevA.82.013815 |
| ISSN: | 1050-2947 |
| Parent Title (English): | Physical Review A - Atomic, molecular, and optical physics |
| Publisher: | AIP Publishing |
| Place of publication: | Melville, NY |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2010 |
| Date of the Publication (Server): | 2016/06/23 |
| Volume: | 82 |
| Issue: | 1 |
| Length: | 013815 |
| Link: | http://arxiv.org/abs/0902.0752 |
| Zugriffsart: | weltweit |
| Institutes: | FH Aachen / Fachbereich Energietechnik |
| collections: | Verlag / AIP Publishing |
