Exploring the van der Waals Atom-Surface attraction in the nanometric range

Details Exploring the van der Waals Atom-Surface attraction in the nanometric range Exploring the van der Waals Atom-Surface attraction in the nanometric range

2006-05-16

arxiv.org/abs/physics/0605134v3

Physics

Atomic Physics

to appear in Europhysics Letters

Scientific paper

The van der Waals atom-surface attraction, scaling as C3 z-3 for z the atom-surface distance, is expected to be valid in the distance range 1-1000 nm, covering 8-10 orders of magnitudes in the interaction energy. A Cs vapour nanocell allows us to analyze the spectroscopic modifications induced by the atom-surface attraction on the 6P3/2->6D5/2 transition. The measured C3 value is found to be independent of the thickness in the explored range 40-130 nm, and is in agreement with an elementary theoretical prediction. We also discuss the specific interest of exploring short distances and large interaction energy.

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