Engineering photonic-plasmonic aperiodic surfacesfor optical biosensing

摘要

The ability to reproducibly and accurately control light matter interaction on the nanoscale is at the core of the field ofoptical biosensing enabled by the engineering of nanophotonic and nanoplasmonic structures. Efficient schemes forelectromagnetic field localization and enhancement over precisely defined sub-wavelength spatial regions is essential totruly benefit from these emerging technologies. In particular, the engineering of deterministic media without translationalinvariance offers an almost unexplored potential for the manipulation of optical states with vastly tunable transport andlocalization properties over broadband frequency spectra. In this paper, we discuss deterministic aperiodic plasmonic andphotonic nanostructures for optical biosensing applications based on fingerprinting Surface Enhanced Raman Scattering(SERS) in metal nanoparticle arrays and engineered light scattering from nanostructured dielectric surfaces with lowrefractive index (quartz).