1. Lensing effect of electromagnetically induced transparency involving a Rydberg state.
- Author
-
Jingshan Han, Manjappa, Manukumara, Ruixiang Guo, Vogt, Thibault, Kiffner, Martin, and Wenhui Li
- Subjects
- *
RYDBERG states , *GAUSSIAN beams , *BLOCH equations , *OPTICAL properties , *GROUP velocity - Abstract
We study the lensing effect experienced by a weak probe field under conditions of electromagnetically induced transparency (EIT) involving a Rydberg state. A Gaussian coupling beam tightly focused on a laser-cooled atomic cloud produces an inhomogeneity in the coupling Rabi frequency along the transverse direction and makes the EIT area acting like a gradient-index medium. We image the probe beam at the position where it exits the atomic cloud and observe that a red-detuned probe light is strongly focused with a greatly enhanced intensity whereas a blue-detuned one is defocused with a reduced intensity. Our experimental results agree very well with the numerical solutions of Maxwell-Bloch equations. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF