Surface and coherent contributions of plasmon fields to ultraviolet tip-enhanced coherent anti-Stokes Raman scattering
Source abstract
Abstract
Abstract Design of plasmonic substrates is of immense importance for high sensitivity and spatial resolution in plasmon-enhanced spectroscopy. In this study, the enhancement factors (EFs) of tip-enhanced coherent anti-Stokes Raman scattering (TECARS) contributed by surface and quantum coherent effects in the ultraviolet region are theoretically analyzed using three-dimensional finite-difference time-domain (3D-FDTD) method. In the multi-resonant TECARS configuration, surface and coherent EFs of 10 18 and 10 9 , respectively, can be achieved by considering the synthetic effect of surface and coherent enhancement mechanisms, providing the total TECARS EF of 10 27 and sub-5 nm spatial resolution. Our theoretical results not only provide a deeper understanding of ultraviolet (UV)-TECARS but also can be used as a highly efficient reference for the experimental design of TECARS platform.
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Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Spectroscopy Techniques in Biomedical and Chemical Research · Plasmonic and Surface Plasmon Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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