A5032736453- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Wireless Communication Technologies
- Thermal Radiation and Cooling Technologies
- Advanced Optical Sensing Technologies
- Advanced Fiber Optic Sensors
- Advanced X-ray Imaging Techniques
- Laser Material Processing Techniques
- Orbital Angular Momentum in Optics
University College London
2009-2019
Rutherford Appleton Laboratory
2009
A compact, four-level polarization discriminator based on a surface plasmon polaritonic crystal (SPPC) has been experimentally demonstrated. It is able to uniquely resolve and spatially separate four signals that have linearly polarized at azimuth angles 0°, 45°, 90°, 135°. exploits the excitation of multiple polariton eigenmodes in nondegenerate directions when SPPC illuminated with monochromatic light. The device planar micrometer scale, which makes it suitable for on-chip integration...
Influence of boundary shape on the wavelength dispersive properties finite surface plasmon polaritonic crystal (SPPC) has been investigated. It is shown that circular reduces crosstalk between neighbour channels for more than 27 dBs over its square counterpart.
We report the experimental realization of a multifunctional microscale plasmonic metasurface capable sampling light beam and performing five functionalities, while allowing high direct transmission maintenance properties input beam. The integrates light-to-surface-plasmon coupling, two-channel wavelength demultiplexing with channel spacing smaller than 44 nm, polarization controllable splitting monochromatic, single signal, four-level wavelength-polarization in an all-in-one structure. Such...
Plasmonic crystals, which consist of periodic arrangements surface features at a metal–dielectric interface, allow the manipulation optical information in form plasmon polaritons. Here we investigate excitation and propagation plasmonic beams around finite size crystals telecom wavelengths, highlighting effects crystal boundary shape illumination conditions. Significant differences broad beam generation by different shapes are demonstrated, while for narrow beams, from onto smooth metal film...
We report the experimental realization of periodically perforated plasmonic metasurfaces capable integrating several key functionalities, such as light-to-surface plasmon coupling, controllable beam-splitting, wavelength filtering and routing, high resolution differential measurement, vectorial displacement sensing. The operate at telecom wavelengths, vicinity eigenmode crossing points where zero group velocity is experienced, their functionality parameters, sensitivity to misalignment,...
A beam splitter based on a surface plasmon polaritonic crystal (SPPC) is experimentally demonstrated. Its functionality parameters can be controlled by engineering the SPPC boundary and manipulating alignment with illuminating beam.
The temporal resolution of existing streak cameras are limited by electron transit time dispersion. Here we present a state-of-art design compensating this to achieve breakthrough 100fs resolution.
We present a plasmonic metasurface capable of integrating light-to-surface plasmon coupling, polarization controllable beam splitting, and wavelength routing. The structure could be an essential element for adaptable on-chip interconnects.