Hiroki Kishikawa, Masayasu Sato, Nobuo Goto, Shin-ichiro Yanagiya, Takamasa Kaito and Shien-Kuei Liaw, “An optical Ammonia Gas Sensor with Adjustable Sensitivity Using Silicon Microring Resonator Covered with Monolayer Graphene”, Japanese Journal of Applied Physics, Part 1 (Special Issues), Vol.58, No.SJ, pp.SJJD05-1- SJJD05-6 (2019).
Hiroki Kishikawa, Masayasu Sato, Nobuo Goto, Shin-ichiro Yanagiya, Takamasa Kaito and Shien-Kuei Liaw, “An optical Ammonia Gas Sensor with Adjustable Sensitivity Using Silicon Microring Resonator Covered with Monolayer Graphene”, Japanese Journal of Applied Physics, Part 1 (Special Issues), Vol.58, No.SJ, pp.SJJD05-1- SJJD05-6 (2019).