Characteristics of an Optical Filter Composed of Two Vertically Coupled Microring Resonators. - Hiroyuki Okamoto; Masanobu Haraguchi; Toshihiro Okamoto; Masuo Fukui (IEICE Trans. Electron., 2007)

GaN-Based High-Contrast Grating for Refractive Index Sensor Operating Blue-Violet Wavelength Region. - Yuusuke Takashima; Masanobu Haraguchi; Yoshiki Naoi (Sensors, 2020)