Kim Donghyun
School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea.
Appl Opt. 2005 Jun 1;44(16):3218-23. doi: 10.1364/ao.44.003218.
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.
研究了方位角取向对光栅耦合表面等离子体共振（GC-SPR）生物传感器中表面等离子体与入射光和衍射光的电磁耦合的影响，并探讨了其实际意义。为此，考虑了一个GC-SPR生物传感器模型，并使用了成熟的严格耦合波分析方法。数值结果表明，与多阶衍射相关的表面等离子体激元之间的相互作用会导致表面等离子体共振特性发生显著变化。讨论了这些结果与需要最小旋转灵敏度的应用之间的关系。
