High-efficiency V-shaped phase gratings to suppress high order diffractions
نویسندگان
چکیده
منابع مشابه
Superposition of Fraunhofer Diffractions from Fork-Shaped Gratings and their Openings with Electron Vortex Beam
We fabricated a fork-shaped grating [1] made from a SiN-membrane with a 200-nm-thickness by using a focused ion beam machine (FB-2100, Hitachi High-Technologies Corp.). The maximum grating size in one direction was 10 μm. Electron diffractions from the gratings were observed with a 300-kV field emission electron microscope (H-9000) [2]. The optical system was constructed for small angle diffrac...
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2019
ISSN: 2158-3226
DOI: 10.1063/1.5043611