Enhancing electromagnetically-induced transparency in a multilevel broadened medium.
Opt Express
; 20(4): 4346-51, 2012 Feb 13.
Article
in En
| MEDLINE
| ID: mdl-22418192
ABSTRACT
Electromagnetically-induced transparency has become an important tool to control the optical properties of dense media. However, in a broad class of systems, the interplay between inhomogeneous broadening and the existence of several excited levels may lead to a vanishing transparency. Here, by identifying the underlying physical mechanisms resulting in this effect, we show that transparency can be strongly enhanced. We thereby demonstrate a 5-fold enhancement in a room-temperature vapor of alkali-metal atoms via a specific shaping of the atomic velocity distribution.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2012
Type:
Article
Affiliation country:
France