Journal
APPLIED PHYSICS LETTERS
Volume 120, Issue 24, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0090606
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Funding
- National Natural Science Foundation of China [12174097]
- Natural Science Foundation of Hunan Province [2021JJ10008]
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This paper proposes a method for inverse design of Pancharatnam-Berry phase metasurfaces based on specified optical computing, which is then applied to optical analog computing and all-optical image edge detection.
In recent decades, optical analog computing has attracted considerable interest in image processing and optical engineering. However, the optical analog computing system composed of traditional optical devices is bulky and difficult to integrate in practical applications. Here, we propose a method for inversely designing Pancharatnam-Berry phase metasurfaces based on specified optical computing. Derived from the evolution of the Pancharatnam-Berry phase on the Poincare sphere, the special relationship between local optical axis structure and phase can be obtained. On this basis, we inversely design several metasurfaces and applied them into optical analog computing as well as all-optical image edge detection. Published under an exclusive license by AIP Publishing.
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