Negative refraction without absorption via quantum coherence
Academic Article
-
- Overview
-
- Identity
-
- Additional Document Info
-
- View All
-
Overview
abstract
-
© 2016 American Physical Society. Negative refraction of a probe field is studied in a dense gas consisting of cascade-type four-level atoms. By coupling the magnetic component of the probe field to a Λ scheme with initially prepared coherence in the two lower levels, strong negative permeability with minimal absorption can be obtained. The permittivity of the gas to the electric component of the probe field can be made negative by taking into account the local field effect of the dense atoms. Strong negative refraction with zero absorption can be achieved in a wide range of parameters in our scheme. A possible experimental realization is also discussed.
published proceedings
author list (cited authors)
-
Fang, A., Ge, W., Wang, M., Li, F., & Zubairy, M. S
citation count
complete list of authors
-
Fang, Ai-Ping||Ge, Wenchao||Wang, Meng||Li, Fu-li||Zubairy, M Suhail
publication date
publisher
published in
Identity
Digital Object Identifier (DOI)
Additional Document Info