Coherent atom optics with fast metastable beams: Metastable helium diffraction by 1D and 2D magnetized reflection gratings

被引：0
|
作者：
Grucker, J. [2 ]
Baudon, J. [2 ]
Karam, J. -C. [2 ]
Perales, F. [2 ]
Bocvarski, V. [1 ]
Ducloy, M. [2 ]
机构：
[1] Inst Phys, Pregrevica 118, Belgrade 11080, Serbia
[2] Univ Paris 13, Phys Lasers Lab, CNRS, UMR 7538, F-93430 Villetaneuse, France
来源：
SIX INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION | 2007年 / 899卷
关键词：
matter waves; coherent atom optics; metastable atoms; surface magnetism;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
1D and 2D reflection gratings (Permalloy stripes or dots deposited on silicon), immersed in an external homogeneous static magnetic field, are used to study 1D and 2D diffraction of fast metastable helium atoms He* (2(3)S(1)). Both the grazing incidence used here and the repulsive potential (for sub-level m = -1) generated by the magnetisation reduce the quenching effect. This periodically structured potential is responsible for the diffraction in the incidence plane as well as for the diffraction in the perpendicular plane.
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页码：34 / +
页数：2
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