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http://dx.doi.org/10.3795/KSME-A.2013.37.12.1513

Nanoaperture Design in Visible Frequency Range Using Genetic Algorithm and ON/OFF Method Based Topology Optimization Scheme  

Shin, Hyun Do (School of Mechanical Engineering, Yonsei Univ.)
Yoo, Jeonghoon (School of Mechanical Engineering, Yonsei Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.12, 2013 , pp. 1513-1519 More about this Journal
Abstract
A genetic algorithm (GA) is an optimization technique based on natural evolution theory to find the global optimal solution. Unlike the gradient-based method, it can design nanoscale structures in the electric field because it does not require sensitivity calculation. This research intends to design a nanoaperture with an unprecedented shape by the topology optimization scheme based on the GA and ON/OFF method in the visible frequency range. This research mainly aims to maximize the transmission rate at a measuring area located 10nm under the exit plane and to minimize the electric distribution at other locations. The finite element analysis (FEA) and optimization process are performed by using the commercial package COMSOL combined with the Matlab programming. The final results of the optimized model are analyzed by a comparison of the electric field intensity and the spot size of near field with those of the initial model.
Keywords
Genetic Algorithm; ON/OFF Method; Transmission Rate; Visible Frequency Range; Surface Plasmon Resonance;
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Times Cited By KSCI : 1  (Citation Analysis)
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