234 citations · 240 across the 5 of their papers we have counts for
5 papers
Generating phase singularities using surface exciton polaritons in an organic natural hyperbolic material
Philip A. Thomas, William P. Wardley, William L. Barnes
Surface polaritons (SPs) are electromagnetic waves bound to a surface through their interaction with charge carriers in the surface material. Hyperbolic SPs can be supported by opt…
Response to Comment on "Non-Polaritonic Effects in Cavity-Modified Photochemistry": On the Importance of Experimental Details
Philip A. Thomas, William L. Barnes
This note responds to Schwartz and Hutchison's Comment (arXiv:2403.06001) on our article (DOI:10.1002/adma.202309393). We think differences have arisen not in the experimental resu…
Dispersion of backward-propagating waves in a surface defect on a 3D photonic band gap crystal
Timon J. Vreman, Melissa J. Goodwin, Lars J. Corbijn van Willenswaard +3
We experimentally study the dispersion relation of waves in a two-dimensional (2D) defect layer with periodic nanopores that sits on a three-dimensional (3D) photonic band gap crys…
Wavefront shaping to improve beam quality: converting a speckle pattern into a Gaussian spot
Alba M. Paniagua-Diaz, William L. Barnes, Jacopo Bertolotti
A perfectly collimated beam can be spread out by multiple scattering, creating a speckle pattern and increasing the etendue of the system. Standard optical systems conserve etendue…
Diffractive arrays of gold nanoparticles near an interface: critical role of the substrate
Baptiste Auguié, Xesús M. Bendaña, William L. Barnes +1
The optical properties of periodic arrays of plasmonic nanoantennas are strongly affected by coherent multiple scattering in the plane of the array, which leads to sharp spectral r…