Most read

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Showing: 1–25 of 50

  1. High-efficiency multiphoton boson sampling

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    Boson sampling with three, four and five photons with high efficiency, purity and indistinguishability is realized using a quantum dot–micropillar as the single-photon source. A record-breaking sampling rate of 4.96 kHz is achieved.

  2. Nanofibre optic force transducers with sub-piconewton resolution via near-field plasmon–dielectric interactions

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    A nanofibre optic force transducer with 0.2 pN sensitivity is demonstrated. The set-up is used to monitor bacterial motion, observe heart cell beating and detect infrasound power in solution.

  3. The significance of research

    When promoting the value of their research or procuring funding, researchers often need to explain the significance of their work to the community — something that can be just as tricky as the research itself.
  4. Photon-trapping microstructures enable high-speed high-efficiency silicon photodiodes

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    Light-trapping nanoscale holes are exploited to improve the speed and efficiency of silicon photodiodes with intrinsic layers less than 2 μm thick.

  5. Graphene photonics and optoelectronics

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    The richness of optical and electronic properties of graphene attracts enormous interest. Graphene has high mobility and optical transparency, in addition to flexibility, robustness and environmental stability. So far, the main focus has been on fundamental physics and electronic devices. However, we believe its true potential lies in photonics and optoelectronics, where the combination of its unique optical and electronic properties can be fully exploited, even in the absence of a bandgap, and the linear dispersion of the Dirac electrons enables ultrawideband tunability. The rise of graphene in photonics and optoelectronics is shown by several recent results, ranging from solar cells and light-emitting devices to touch screens, photodetectors and ultrafast lasers. Here we review the state-of-the-art in this emerging field.

  6. Hybrid indium phosphide-on-silicon nanolaser diode

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    By exploiting one-dimensional photonic crystal nanocavities, an ultra-compact indium phosphide-on-silicon laser diode with low current threshold, high wall-plug efficiency and high integrability is demonstrated.

  7. The emergence of perovskite solar cells

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    Within the space of a few years, hybrid organic–inorganic perovskite solar cells have emerged as one of the most exciting material platforms in the photovoltaic sector. This review describes the rapid progress that has been made in this area.

  8. Enlargement of optical Schrödinger's cat states

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    The amplitude of a Schrödinger's cat (SC) state — superposed coherent state — is increased using a homodyne measurement. A pair of negative SC states with amplitude of 1.15 is probabilistically converted to a single positive SC state with amplitude of 1.85.

  9. Nonlinear plasmonics

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    One of the main features of plasmonics is the possibility to locally enhance the intensity of electromagnetic fields. This enables strong non-linear optical effects in structures with metal inclusions, including metamaterials. This Review discusses nonlinear effects in plasmonic structures and presents an overview of applications and limitations.

  10. Relativistic electron beams driven by kHz single-cycle light pulses

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    A laser–plasma accelerator delivering 5-MeV electrons at kHz repetition rate is demonstrated. It is achieved in the laser-wakefield-acceleration regime by using a multi-mJ laser system delivering near-single-cycle laser pulses of 3.4-fs duration.

  11. Near-zero refractive index photonics

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    The underlying principles and unique optical applications of structures exhibiting near-zero dielectric permittivity and/or magnetic permeability are reviewed. The timely relevance to nonlinear, non-reciprocal and non-local effects is highlighted.

  12. A legacy for lasers

    Ronald Drever may be most famous for co-founding the LIGO project and his gravitational-wave research, but his contributions to laser stabilization have had broad impact on the photonics community.
  13. Hyperbolic metamaterials

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    Hyperbolic, or indefinite, metamaterials are reviewed. These anisotropic materials may exhibit properties such as strong enhancement of spontaneous emission, diverging density of states, negative refraction and superlensing.