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Creating electron phase holograms using femtosecond laser interference processing
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DOI：10.1364/OE.27.020958.png)
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摘要
En 中文
Recently, electron beams with structured phase fronts, such as electron vortex beams, have attracted considerable interest. Herein, we present a novel method of fabricating electron phase holograms using a femtosecond laser interference processing. A 35-nm-thick silicon membrane, corresponding to a phase shift of pi for 200-keV electrons, was processed using single-shot laser irradiation, whereas processing such thin membranes with a focused ion beam milling technique would be very difficult. This rapid and efficient technique is expected to produce phase diffraction elements for practical applications in a wide range of electron optics fields. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
GENERATION
VORTEX
BEAMS
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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