Optical vortex beam splitter using topological edge state waveguide

S. Okada, T. Amemiya, H. Kagami, K. Saito, M. Tanaka, N. Nishiyama, X. Hu, The Conference on Lasers and Electro-Optics 2020 (CLEO 2020), JW2A.38, May 2020.