Repeated interaction model for diffusion-induced Ramsey narrowing.
In a recent paper [Y. Xiao et al., Phys. Rev. Lett. 96, 043601 (2006)] we characterized diffusion-induced Ramsey narrowing as a general phenomenon, in which diffusion of coherence in-and-out of an interaction region such as a laser beam induces spectral narrowing of the associated resonance lineshape. Here we provide a detailed presentation of the repeated interaction model of diffusion-induced Ramsey narrowing, with particular focus on its application to Electromagnetically Induced Transparency (EIT) of atomic vapor in a buffer gas cell. We compare this model both to experimental data and numerical calculations.
Xiao
Yanhong
Y
Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA.
Novikova
Irina
I
Phillips
David F
DF
Walsworth
Ronald L
RL
D003198:Computer Simulation; D017076:Computer-Aided Design; D004058:Diffusion; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*