Tailored diffraction asymmetries from spatially odd-symmetric phase gratings

Phase gratings, each period of which consists of even numbers of equal-width and equal-thickness elements, can be devised to attain asymmetric diffraction patterns. We show that engineering of offset refractive indices in different elements exhibiting a spatially odd symmetry leads to the eliminatio...

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Bibliographic Details
Main Authors: Shuo Hua, Yi-Mou Liu, G. E. Lio, Xiao-Jun Zhang, Jin-Hui Wu, M. Artoni, G. C. La Rocca
Format: Article
Language:English
Published: American Physical Society 2022-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.023113