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We propose a new type of chiral optical interactions based on a low-dimensional polarization eigenstate. Directional coupling between different spin momentum of light will be discussed, which leads to the convergence of polarization states to the singularity point. For its meta-material implementation, we use parity-time (PT) symmetric potentials in a polar meta-molecule platform, to achieve the unidirectional...
We investigate the operation of all-optical multi-junction half-adder built upon photonic mode-orthogonal hetero-structures. Controlling the dielectric potential of multi-junctions (Ψe-Ψe-o-Ψo), the flow of photons from Ψe-o region can be abruptly manipulated to Ψe or Ψo region in self-induced manner. With exceptional performance metrics, all-optical logic operations for half-adder are successfully...
We propose a design method of structured grating for out of plane conversion, focusing and manipulation of Surface Plasmon Polariton waves. Advanced functional devices, such as balanced power splitters, and wavelength demultiplexers are demonstrated with high conversion efficiency.
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