@article{oai:kitami-it.repo.nii.ac.jp:00008198,
 author = {Hirayama, Koichi and Tabata, Yoshihiro and Tsuji, Yasuhide and Hayashi, Yukinari},
 issue = {12},
 journal = {Microwave and Optical Technology Letters},
 month = {Dec},
 note = {We employ topology optimization with the finite-element method to improve the coupling between a slab waveguide and a photonic crystal waveguide. Here, we apply topology optimization in a small design region to realize the improvement of the coupling. Also, we simplify an optimized structure of the coupling region for easier fabrication and try to find core features of the optimized structure.},
 pages = {3009--3012},
 title = {Topology optimization of coupling between slab and photonic crystal waveguide},
 volume = {50},
 year = {2008}
}