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In this study, the plasmonic extinction spectra and local field distributions of three different gold nanoframe models with multi-breakages are simulated based on the discrete dipole approximation (DDA) method. By tuning the length of one breakage, there are two clearly separated surface plasmon resonance (SPR) peaks which show a clear blue shift as the broken length increases, and the local field...
In this study, a gold nanobox with 40 nm edge length has been transformed into nanoframe gradually by increasing the square-hole length in each {100} facet of the hexahedron. The local dielectric environment-dependent plasmon spectra and refractive index sensitivity of this face-holed single gold nanocage were investigated based on the discrete dipole approximation method. Both the redshift of the...
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