title: Grating-coupled transmission-type surface plasmon resonance sensors based on dielectric and metallic gratings.
abstract: We investigated grating-coupled transmission-type surface plasmon resonance (SPR) for sensing applications. In the transmission-type SPR structure, propagating surface plasmons are outcoupled to radiation modes by dielectric and metallic gratings on a metal film. The results calculated in air and water suggest that the proposed structures present extremely linear sensing characteristics. In terms of a figure of merit, a metallic grating-based structure performs 5.4 and 3.7 times better than that of a dielectric grating in air and water, respectively.
authors: School of Electrical Engineering and Computer Science, Seoul National University, South Korea.
authors: Kyung Min
authors: KM
authors: Byun
authors: Sung June
authors: SJ
authors: Kim
authors: Donghyun
authors: D
authors: Kim