[15p-F202-1~11] 3.12 Nanoscale optical science and near-field optics

[15p-F202-10] Topology optimization of optical material based on FDTD and level-set method

〇Hideki Yasuda^1,2, Masayuki Naya¹, Takayuki Yamada², Shinji Nishiwaki² (1.Fujifilm, 2.Kyoto Univ.)

Keywords:topology optimization, metamaterial, plasmonics

In this study, we present a new topology optimization method using level-set method and FDTD method for designing optical materials.The optimization problem is formulated as a problem to minimize or miximize optical responce. The adjoint variable method (AVM) is employed to calculate the sensitivity. The structual boundaries are represented by the iso-surface of a scalar function called level-set function, and updated based on a reaction-diffusion equation.