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The certification of solar cells with exceptional performance is now common practice in order to ratify claims. Should similar schemes be introduced for other optoelectronic devices?
Measurements of the Hong–Ou–Mandel effect in a quantum system with PT-symmetric losses composed of coupled waveguides and single photons produce some counterintuitive results.
By designing wavefronts in the far field that have optimal properties in the near field, a general framework for optimal micromanipulation with targets of arbitrary shape and in arbitrarily complex environments, such as disordered media, is reported.
Luminescent CsPbBr3 quantum dots can be written into glass using femtosecond laser pulses and thermal annealing, and erased by further femtosecond laser irradiation. The resulting quantum dot patterns could prove useful for data storage, decoration or security purposes.
Localized photodoping in mixed-cation perovskites is shown to modify charge-carrier recombination and thus offer a route for more efficient light emission.
Freely propagating, locally and globally chiral electric fields are introduced, enabling full control over intensity, polarization and propagation direction of the nonlinear enantio-sensitive optical response of randomly oriented chiral molecules.
Using two dielectric metasurface layers, a compact quantitative phase gradient microscope that can capture quantitative phase gradient images in a single shot is reported with phase gradient sensitivity better than 92.3 mrad μm−1 and single-cell resolution.
Higher-order (fifth and seventh order) coherent anti-Stokes Raman scattering microscopy is demonstrated to break the diffraction limit for label-free super-resolution vibrational imaging for live cells such as HeLa and buccal cells.
While the ability to increase the light–matter interaction by depositing graphene inside the air holes of a long length of photonic crystal fibre is worth celebrating, cautious optimism is called for when we begin to discuss the industrialization of graphene-based fibre-optic components.
A quantum-dot-based single-photon source with a polarized single-photon efficiency of 60% and an indistinguishability of 0.975 is demonstrated by introducing a small asymmetry in a photonic cavity structure.
A wide-field system that can perform video-rate imaging of the entire area of the brain of an awake mouse is aiding the study of neurones, epilepsy and the immune system.
This Review covers recent progress in integrated quantum photonics (IQP) technologies and their applications. The challenges and opportunities of realizing large-scale, monolithic IQP circuits for future quantum applications are discussed.