Articles with "phase elements" as a keyword



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Flexible generation of vector beams based on the noncommutation of Pancharatnam–Berry phase elements

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Published in 2019 at "Optics Communications"

DOI: 10.1016/j.optcom.2019.03.043

Abstract: Abstract We examine the noncommutation of Pancharatnam–Berry phase elements in the generation of vector beams. Any desirable vector beams on the two high-order Poincare spheres can be generated by incorporating the noncommutation and certain input… read more here.

Keywords: vector beams; berry phase; pancharatnam berry; noncommutation ... See more keywords

Multi-focus hologram utilizing Pancharatnam-Berry phase elements based metamirror.

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Published in 2019 at "Optics letters"

DOI: 10.1364/ol.44.002189

Abstract: An ultrathin reflection-type metamirror is proposed for multi-focusing with any desired focusing fashion including focal number and location. The metamirror is composed of reflection-type Pancharatnam-Berry (P-B) phase elements, which are able to provide full reflection… read more here.

Keywords: metamirror; berry phase; pancharatnam berry; reflection ... See more keywords
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Effect of γ′ Phase Elements on Oxidation Behavior of Nanocrystalline Coatings at 1050 °C

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Published in 2021 at "Materials"

DOI: 10.3390/ma14010202

Abstract: To study the effect of γ′ phase elements on the oxidation behavior of nanocrystalline coatings, two comparable nanocrystalline coating systems were established and prepared by magnetron sputtering. The oxidation experiments of the nanocrystalline coatings on… read more here.

Keywords: nanocrystalline coatings; phase elements; effect phase; elements oxidation ... See more keywords