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Home-made twin-hole optical fibers were thermally poled and etched, a three layer nonlinear region was demonstrated. The two dimensional three charge dynamics model was applied to show the migration and distribution of charge carriers and revealed that the three nonlinear layer region is consistent with the distribution of the charge carriers. The simulation results also showed an inconsistent of...
We conduct both analytical and numerical investigations of the giant gradient force for nanoparticle trapping in the coupled graphene strips waveguides system. An analytical model based on coupled slab waveguides has been adopted in the analysis of mode performance and gradient force, and good agreement is obtained with numerical simulations. Both theoretical modeling and numerical simulations have...
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