Diffusion-induced Ramsey narrowing.
Diffusion-induced Ramsey narrowing is characterized and identified 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 line shape. Illustrative experiments and an intuitive analytical model are presented for this spectral narrowing effect, which occurs commonly in optically interrogated atomic systems and may also be relevant to quantum dots and other solid-state spin systems.
Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA.
Yanhong
Y
Xiao
Irina
I
Novikova
David F
DF
Phillips
Ronald L
RL
Walsworth