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physics.optics2015★ 37 cited
Unidirectional and Wavelength Selective Photonic Sphere-Array Nanoantennas
Yang G. Liu, Wallace C. H. Choy, Wei E. I. Sha +1
We design a photonic sphere-array nanoantenna (NA) exhibiting both strong directionality and wavelength selectivity. Although the geometric configuration of the photonic NA resembl…
physics.optics2015★ 11 cited
Observing Abnormally Large Group Velocity at the Plasmonic Band Edge via a Universal Eigenvalue Analysis
Wei E. I. Sha, Ling Ling Meng, Wallace C. H. Choy +1
We developed a novel universal eigenvalue analysis for 2D arbitrary nanostructures comprising dispersive and lossy materials. The complex dispersion relation (or complex Bloch band…