Metasurface Freeform Nanophotonics

Diamond nanophotonics

We demonstrate the coupling of single color centers in diamond to plasmonic and dielectric photonic structures to realize novel nanophotonic devices. Nanometer spatial control in the creation of single color centers in diamond is achieved by implantation of nitrogen atoms through high-aspect-ratio channels in a mica mask. Enhanced broadband single-photon emission is demonstrated by coupling nit...

New horizons for nanophotonics.

1Nonlinear Physics Centre and CUDOS@ANU, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia 2School of Physics and Astronomy, University of Exeter, Exeter EX4 4QL, UK 3Department of Physics, Imperial College London, London SW7 2AZ, UK 4Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK

Femtosecond Nanophotonics and Microscopy

Two-Dimensional Material Nanophotonics

The emerging two-dimensional (2D) materials exhibit a wide range of electronic properties, ranging from insulating hexagonal boron nitride (hBN), semiconducting transition metal dichalcogenides (TMDCs) such as molybdenum disulfide (MoS2) and tungsten diselenide (WSe2), to semi-metallic graphene. The plethora of 2D materials together with their heterostructures, which are free of the traditional...

Resonant thermoelectric nanophotonics.

Photodetectors are typically based either on photocurrent generation from electron-hole pairs in semiconductor structures or on bolometry for wavelengths that are below bandgap absorption. In both cases, resonant plasmonic and nanophotonic structures have been successfully used to enhance performance. Here, we show subwavelength thermoelectric nanostructures designed for resonant spectrally sel...