Nearly nondiffracting electron lattice beams generated by polygonal slits

被引：5
|
作者：
Nambu, Hiroki [1 ]
Noguchi, Yuuki [1 ]
Saitoh, Koh [2 ]
Uchida, Masaya [3 ]
机构：
[1] Nagoya Univ, Dept Crystalline Mat Sci, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Inst Mat & Syst Sustainabil, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
[3] Saitama Inst Technol, Adv Sci Res Lab, Fukaya, Saitama 3690293, Japan
来源：
MICROSCOPY | 2017年 / 66卷 / 04期
关键词：
electron vortex beam; nondiffracting beam; electron lattice beam; Bessel beam; ORBITAL ANGULAR-MOMENTUM; VORTEX BEAMS; INTERFERENCE;
D O I：
10.1093/jmicro/dfx020
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
A method for generating electron lattice beams carrying vortices using nanofabricated polygonal slits in a transmission electron microscope is proposed. Experimental and simulation study of the intensity of the beams verified their Bessel beam-like nearly non-diffracting behavior. Phase analysis using a diffractive imaging method found arrays of quantized vortices, forming an electron beam lattice with cylindrical intensity distribution in the propagation direction. Such vortex lattice beams may be used in a variety of applications including nanofabrication, particle manipulation or a new electron imaging method.
引用
收藏
页码：295 / 299
页数：5
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