Analog Optical Spatial Differentiators Based on Dielectric Metasurfaces
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DOI: 10.1002/adom.201901523
Abstract: Analog spatial differentiator is an important optical computational device that can be potentially used in the field of highâspeed edge detection and optical image processing. In the current stage, a general method is still required… read more here.
Keywords: spatial differentiators; differentiators based; analog optical; based dielectric ... See more keywords
Topological spatial differentiators upon reflection of the normally incident light.
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DOI: 10.1364/ol.473999
Abstract: We theoretically propose topological spatial differentiators by the normal-incidence reflection of light. Firstly, a three-dimensional propagation model is established for the light normally incident on the interface between two media. It is found that due… read more here.
Keywords: spatial differentiators; topological spatial; upon reflection; differentiators upon ... See more keywords