Rb optical resonance inside a random porous medium

Abstract

We studied resonant laser interaction with Rb atoms confined to the interstitial cavities of a random porous glass. Due to diffusive light propagation, the effect of atomic absorption on the light scattered by the sample is almost entirely compensated by atomic fluorescence at low atomic densities. For higher densities, radiation trapping increases the probability of non-radiative decay via atom-wall collisions. A simple connection of the fluorescence/absorption yield to the sample porosity is given.

3 pages, 3 figures and supplemental material

References in corpus (1)

• Low-Light-Level Optical Interactions with Rubidium Vapor in a Photonic Bandgap Fiber

Cited by in corpus (7)

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• Sub-Doppler resonances in the back-scattered light from random porous media infused with Rb vapor
• Two-photon excitation of rubidium atoms inside porous glass
• Probing atoms and molecules close to macroscopic bodies