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Nanoscale optical nonreciprocity with nonlinear metasurfaces
Aditya Tripathi, Chibuzor Fabian Ugwu, Viktar S. Asadchy +6
Optical nonreciprocity is manifested as a difference in the transmission of light for the opposite directions of excitation. Nonreciprocal optics is traditionally realized with rel…
Meta-optic Accelerators for Object Classifiers
Hanyu Zheng, Quan Liu, You Zhou +3
Rapid advances in deep learning have led to paradigm shifts in a number of fields, from medical image analysis to autonomous systems. These advances, however, have resulted in digi…
Incoherent Optoelectronic Differentiation with Optimized Multilayer Films
Xiaomeng Zhang, Benfeng Bai, Hong-Bo Sun +2
Fourier-based optical computing operations, such as spatial differentiation, have recently been realized in compact form factors using flat optics. Experimental demonstrations, how…
All-Dielectric Meta-optics for High-Efficiency Independent Amplitude and Phase Manipulation
Brian O. Raeker, Hanyu Zheng, You Zhou +3
Metasurfaces, composed of subwavelength scattering elements, have demonstrated remarkable control over the transmitted amplitude, phase, and polarization of light. However, manipul…
Image Processing Based on Compound Flat Optics
You Zhou, Hanyu Zheng, Ivan I. Kravchenko +1
Image processing has become a critical technology in a variety of science and engineering disciplines. While most image processing is performed digitally, optical analog processing…
Metasurface polarization splitter
Brian A. Slovick, You Zhou, Zhi Gang Yu +5
Polarization beam splitters, devices that separate the two orthogonal polarizations of light into different propagation directions, are one of the most ubiquitous optical elements.…