161 citations · 489 across the 22 of their papers we have counts for
4 papers · 1 filter
Whispering gallery mode single nano-particle detection and sizing: the validity of the dipole approximation
Matthew R. Foreman, David Keng, Eshan Treasurer +2
Interactions between whispering gallery modes (WGMs) and small nanoparticles are commonly modelled by treating the particle as a point dipole scatterer. This approach is assumed to…
Nanoparticle-assisted STED nanoscopy with gold nanospheres
Nicolai T. Urban, Matthew R. Foreman, Stefan W. Hell +1
We demonstrate stimulated emission depletion (STED) microscopy with 20 nm gold nanospheres coated by fluorescent silica. Compared with previous demonstrations of STED with a hybrid…
Polarization-selective out-coupling of whispering gallery modes
Florian Sedlmeir, Matthew R. Foreman, Ulrich Vogl +6
Whispering gallery mode (WGM) resonators are an important building block for linear, nonlinear and quantum optical experiments. In such experiments, independent control of coupling…
Dielectric tuning and coupling of whispering gallery modes using an anisotropic prism
Matthew R. Foreman, Florian Sedlmeir, Harald G. L. Schwefel +1
Optical whispering gallery mode (WGM) resonators are a powerful and versatile tool used in many branches of science. Fine tuning of the central frequency and line width of individu…