Exploring the van der Waals atom-surface attraction in the nanometric range

被引：77
|
作者：
Fichet, M.
Dutier, G.
Yarovitsky, A.
Todorov, P.
Hamdi, I.
Maurin, I.
Saltiel, S.
Sarkisyan, D.
Gorza, M.-P.
Bloch, D.
Ducloy, M.
机构：
[1] CNRS, UMR 7538, Lab Phys Lasers, F-93430 Villetaneuse, France
[2] Univ Paris 13, F-93430 Villetaneuse, France
[3] Natl Acad Sci, Inst Phys Res, Ashtarak 2, Armenia
来源：
EPL | 2007年 / 77卷 / 05期
关键词：
D O I：
10.1209/0295-5075/77/54001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The van der Waals atom-surface attraction, scaling as C(3)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 modi. cations induced by the atom-surface attraction on the 6P(3/2) -> 6D(5/2) transition. The measured C(3) 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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页数：6
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