145 citations · 524 across the 11 of their papers we have counts for
4 papers · 1 filter
Collective Resonances in Nanoparticle Oligomers
Ben Hopkins
The study of nanostructured artificial media for optics has expanded rapidly over the last few decades, coupled with improvements of fabrication technology that have enabled invest…
Optical chirality from dark-field illumination of planar plasmonic nanostructures
Yongsop Hwang, Ben Hopkins, Dapeng Wang +4
Dark-field illumination is shown to make planar chiral nanoparticle arrangements exhibit circular dichroism in extinction analogous to true chiral scatterers. Circular dichrosim is…
Nonlinear anisotropic dielectric metasurfaces for ultrafast nanophotonics
Giuseppe Della Valle, Ben Hopkins, Lucia Ganzer +7
We report on the broadband transient optical response from anisotropic nanobrick amorphous silicon particles, exhibiting Mie-type resonances. A quantitative model is developed to i…
Active tuning of high-Q dielectric metasurfaces
Matthew Parry, Andrei Komar, Ben Hopkins +7
We demonstrate the active tuning of all-dielectric metasurfaces exhibiting high-quality factor (high-Q) resonances. The active control is provided by embedding the asymmetric silic…