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Time domain topology optimization of 3D nanophotonic devices
Institution:1. Faculty of Engineering, Architecture, and Information Technology, University of Queensland, Brisbane, QLD 4072, Australia;2. Faculty of Electrical and Computer Engineering, Shahid Beheshti University, G. C. 1983963113, Tehran, Iran;3. School of Information and Communication Technology, Griffith University, Nathan, Brisbane, QLD 4111, Australia;1. Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, 43210, USA;2. Department of Plastic Surgery, The Ohio State University, Columbus, OH, 43210, USA;1. BK21Plus Transformative Program for Creative Mechanical & Aerospace Engineers, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea;2. Institute of Advanced Machines and Designs, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea;3. Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea;1. Department of Mechanical and Aerospace Engineering, Seoul National University, Institute of Advanced Machines and Design, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Republic of Korea;2. Center for Medical Metrology, Division of Convergence Technology, Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
Abstract:We present an efficient parallel topology optimization framework for design of large scale 3D nanophotonic devices. The code shows excellent scalability and is demonstrated for optimization of broadband frequency splitter, waveguide intersection, photonic crystal-based waveguide and nanowire-based waveguide. The obtained results are compared to simplified 2D studies and we demonstrate that 3D topology optimization may lead to significant performance improvements.
Keywords:Time domain topology optimization  Nanophotonic structures  3D designs  Large scale simulations
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