Nanophotonics

Official site with links to, and information about, the research of NanoPhotonics in the Department of Physics, University of Cambridge. It often (but not exclusively) involves metallic components, which can transport and . It belongs to the top journals in the field. Carbon nanotubes for ultrafast fibre lasers. The scope extends to theory, modeling and simulation, experimentation, .

Light-concentration effects in photonic nanostructures promise new applications ranging from tumour therapy to catalysis and enhanced solar cells.

The future of metamaterials and metasurfaces.

In this focus we look at how the design of light matter-interactions, for example via plasmonic effects, can be used as an efficient means to control light on the nanoscale, . The NanoPhotonics Group (NP) is one of the most recent groups in the Cavendish and is part of the EPSRC-funded UK NanoPhotonics Portfolio in Cambridge. The central theme is the manipulation of electrons, atoms, and light in nanostructured materials. Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity. Nonlocal response in plasmonic waveguiding with extreme light confinement.

Plasmons have been excited on graphene at mid-infrared frequencies ( 5), with wavelengths that are shrunk relative to free space by a . The creation of photonic materials, circuitry, devices and probes that act on the nanoscale is yielding new opportunities for controlling light in the sub-wavelength regime. We conduct research on the fundamental interactions between light and matter, particularly nanostructures. And we explore the possibilities for creating new and better components, for instance for ultra-fast communication.

The section consists of four research groups working with . Nanoscale waterlily, courtesy of R. Waters, University of Southampton. This meeting will bring together leading researchers from different areas of nanoscale physics to explore the confluence of subwavelength photonics, metamaterials, graphene physics, and nonlinear optics. Here we review recent progress on experiments with quantum dots in nanophotonic structures with special emphasis on the dynamics of single-photon emission. Nanophotonics and Metamaterials. A nonlinear optimization algorithm was used to design the device for λ= 5nm.

The polarization beamsplitter and . In this work, the synergistic advantage of combining plasmonic interferometry with an enzyme-driven dye assay yields an optical sensor . Flatland plasmonics and nanophotonics based on graphene and beyond. It was recently demonstrated that broadband quantum cascade lasers can operate as frequency combs. As such, they operate under direct electrical pumping at both mid-infrared and THz frequencies, making them very attractive for dual-comb spectroscopy.

Performance levels are continuously improving, with . Direct generation of optical frequency combs in χ(2) nonlinear cavities. Different structures have been explored as plasmonic waveguides for potential integration . Efficient interfaces between photons and quantum emitters form the basis for quantum networks and enable optical nonlinearities at the single- photon level. We demonstrate an integrated platform for scalable quantum nanophotonics based on silicon-vacancy (SiV) color centers coupled to . Here, we demonstrate nanophotonics -enabled solar membrane distillation ( NESMD), where highly localized photothermal heating induced by solar illumination alone drives the distillation process, entirely eliminating the requirement of heating the input water.

Unlike M NESMD can be scaled to larger . 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 .