title: Effect of the azimuthal orientation on the performance of grating-coupled surface-plasmon resonance biosensors.
abstract: The effect of azimuthal orientation on the electromagnetic coupling of surface plasmons with the incident and diffracted light of a grating-coupled surface-plasmon resonance (GC-SPR) biosensor is investigated, and its practical implications are explored. For this purpose a GC-SPR biosensor model is considered, and well-established rigorous coupled-wave analysis is used. Numerical results indicate significant variations in surface-plasmon resonance characteristics in connection with the interaction between surface-plasmon polaritons associated with multiple-order diffraction. The results are discussed as they relate to applications that require minimal rotation sensitivity.
authors.affiliation: School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea. kimd@yonsei.ac.kr
authors.forename: Donghyun
authors.initials: D
authors.lastname: Kim
mesh_terms: D000465:Algorithms; D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D017076:Computer-Aided Design; D004867:Equipment Design / Q000379:methods; D019544:Equipment Failure Analysis / Q000379:methods*; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D020349:Surface Plasmon Resonance / Q000295:instrumentation* / Q000379:methods