Design and Analysis of Nano-Optical Networks Consisting of Nanowires and Optimized Couplers

We present computational design and investigation of nano-optical systems involving nanowires and well-designed nano-couplers to effectively transmit electromagnetic power in nanometer scales. Different nano-couplers, which consist of optimal arrangements of nano-cubes, are carefully designed by considering various scenarios, e.g., nanowire lines with sharp corners and junctions. An efficient combination of genetic algorithms and the multilevel fast multipole algorithm is used to find suitable configurations of nano-cubes that provide desired electromagnetic responses. Combinations of multiple nano-couplers and nanowires allow us to build larger nano-optical systems with different shapes, inputs, and outputs. Initial results presented in this paper demonstrate the feasibility of complex networks based on nanowires and nano-couplers.