"Nobuhiko Nishiyama,JoonHyun Kang,Yuki Kuno,Kazuto Ito,Yuki Atsumi,Tomohiro Amemiya,Shigehisa Arai","Si-photonics-based Layer-to-layer Coupler Toward 3D Optical Interconnection",,"IEICE Transactions on Electronics",,"Vol. E101-C","No. 7","pp. 501-508",2018,July