English

Micro lensing induced lineshapes in a single mode cold-atom hollow-core fiber interface

Atomic Physics 2018-08-29 v1 Optics Quantum Physics

Abstract

We report on the observation of strong transmission line shape alterations in a cold-atom hollow-core fiber interface. We show that this can lead to a significant overestimation of the assigned resonant optical depth for high atom densities. By modeling light beam propagation in an inhomogeneous dispersive medium, we attribute the observations to micro lensing in the atomic ensemble in combination with the mode selection of the atom-fiber interface. The approach is confirmed by studies of Rydberg EIT line shapes.

Keywords

Cite

@article{arxiv.1805.11391,
  title  = {Micro lensing induced lineshapes in a single mode cold-atom hollow-core fiber interface},
  author = {Mohammad Noaman and Maria Langbecker and Patrick Windpassinger},
  journal= {arXiv preprint arXiv:1805.11391},
  year   = {2018}
}
R2 v1 2026-06-23T02:11:46.720Z