用于原子光学的微米级磁性结构

Comptes Rendus de l'Académie des Sciences - Series IV - Physics-Astrophysics Pub Date : 2001-06-01 DOI:10.1016/S1296-2147(01)01194-5

A.I. Sidorov , R.J. McLean , B.A. Sexton , D.S. Gough , T.J. Davis , A. Akulshin , G.I. Opat , P. Hannaford

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引用次数: 8

摘要

在外场作用下，用聚焦二极管激光束在垂直磁化的TbFeCo薄膜上进行磁光记录，并通过微加工垂直磁化的沟槽CoCr结构，构建了具有微米级周期性的磁结构。激光冷却的铯原子光束通常入射到这两种结构上，已经实现了强反射信号和主要的镜面反射。对于a=1 μm的凹槽磁结构，其镜面率的初步测量结果尤其令人鼓舞。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Micron-scale magnetic structures for atom optics

Magnetic structures with periodicities on the scale of a micron have been constructed by magneto-optical recording on perpendicularly magnetised TbFeCo film with a focussed diode laser beam in the presence of an external field, and by microfabricating perpendicularly magnetised grooved CoCr structures. Strong reflection signals and predominantly specular reflection have been realised for beams of laser-cooled caesium atoms normally incident on both types of structure. Preliminary measurements of the specularity for a grooved $a=1$ μm magnetic structure are particularly encouraging.

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Comptes Rendus de l'Académie des Sciences - Series IV - Physics-Astrophysics

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