Nanophotonic structures exhibit a large variety of effects on the nanoscale that can be used for biosensing in a biochip format. The resonance nature of these structures then allows high sensitivity to analytes, gases, or other external index perturbations down to the order of 10-8 refractive index unit. In this chapter, several configurations of nanophotonic structures and their use for sensing are reviewed with special emphasis on grating-based resonant structures, metallic nanoparticle, and nano apertures.
|Name||Springer series on Chemical Sensors and Biosensors|
- Surface plasmons
- Surface enhanced effects
- Metallic nanostructures