A compact-size and ultrasensitive optical biosensor using a double-spiral microresonator. - Anh Igarashi; Yugang Shang; Shigeki Kuroiwa; Keishi Ohashi; Hirohito Yamada (IEEE SENSORS, 2022)

Enhancement of Refractive Index Sensitivity Using Small Footprint S-Shaped Double-Spiral Resonators for Biosensing. - Anh Igarashi; Maho Abe; Shigeki Kuroiwa; Keishi Ohashi; Hirohito Yamada (Sensors, 2023)