Dielectric Walls/Layers Modulated 3D Periodically Structured SERS Chips: Design, Batch Fabrication, and Applications.

ABSTRACT: As an indispensable constituent of plasmonic materials/dielectrics for surface enhanced Raman scattering (SERS) effects, dielectrics play a key role in excitation and transmission of surface plasmons which however remain more elusive relative to plasmonic materials. Herein, different roles of vertical dielectric walls, and horizontal and vertical dielectric layers in SERS via 3D periodic plasmonic materials/dielectrics structures are studied. Surface plasmon polariton (SPP) interferences can be maximized within dielectric walls besieged by plasmonic layers at the wall thicknesses of integral multiple half-SPP_{plasmonic material-dielectric} -wavelength which effectively excites localized surface plasmon resonance to improve SERS effects by one order of magnitude compared to roughne

SUBMITTER: Tian Y 

PROVIDER: S-EPMC9130881 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature