Generation of electron beams carrying orbital angular momentum

被引：0
|
作者：
Masaya Uchida
Akira Tonomura
机构：
[1] Advanced Science Institute,
[2] RIKEN (The Institute of Physical and Chemical Research),undefined
[3] Wako,undefined
[4] Saitama 351-0198,undefined
[5] Japan ,undefined
来源：
Nature | 2010年 / 464卷
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学科分类号：
摘要：
In addition to the angular momentum carried by a photon's spin (represented by its polarization), light beams can also be engineered to carry orbital angular momentum. Such beams find a variety of uses, for example, as optical 'spanners' — essentially a 'twisted' variant of the more familiar optical tweezers. Now Masaya Uchida and Akira Tonomura show that it is possible in principle to engineer similar behaviour into an electron beam, which could find use in a variety of spectroscopy and microscopy techniques.
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页码：737 / 739
页数：2
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