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arXiv · 1305.7334

Three dimensional confinement of vapor in nanostructures for sub-Doppler optical resolution

Philippe Ballin·Elias Moufarej·Isabelle Maurin·Athanasios Laliotis·Daniel Bloch
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Abstract

We confine a Cs thermal vapor in the interstitial regions of a glass opal. We perform linear reflection spectroscopy on a cell whose window is covered with a thin film (10 or 20 layers) of ~ 1000 nm (or 400 nm) diameter glass spheres, we observe sub-Doppler structures in the optical spectrum for a large range of oblique incidences. This original feature associated with the inner (3-dimension) confinement of the vapor in the interstitial regions of the opal, evokes a Dicke narrowing. We finally consider possible micron-size references for optical frequency clocks based on weak, hard to saturate, molecular lines.

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Philippe Ballin, Elias Moufarej, Isabelle Maurin, Athanasios Laliotis, Daniel Bloch. 2013-05-31. Three dimensional confinement of vapor in nanostructures for sub-Doppler optical resolution. https://doi.org/10.1063/1.4809668

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