On-demand all-optical generation of controlled Rb-vapor densities in photonic-band-gap fibers

Amar R. Bhagwat, Aaron D. Slepkov, Vivek Venkataraman, Pablo Londero, Alexander L. Gaeta
2009 Physical Review A. Atomic, Molecular, and Optical Physics  
We investigate the time dynamics of light-induced desorption of Rb atoms in hollow-core photonic-band-gap fibers and demonstrate all-optical generation of precisely controlled Rb-vapor densities. We also compare the performance of the desorption process in an unmodified fiber with one with an organosilane-coated core, and based on the vapor depletion and recovery behavior, we propose a mechanism to describe the desorption processes. We further demonstrate that high densities of Rb vapor can be
more » ... of Rb vapor can be generated after the desorption beam is switched off and use it to realize ⌳-scheme electromagnetically induced transparency at control powers as low as 80 nW.
doi:10.1103/physreva.79.063809 fatcat:gkmx3kjjtvgijin4oy4doub6zm