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Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate

Jonathan Baine1, Jing Tang2, Xing Li2

  • 1Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.

Nanomaterials (Basel, Switzerland)
|July 31, 2020
PubMed

Keywords:
Fresnel zone platelensmetasurfacepolarization

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A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
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