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A sub-cycle modulation in reflectivity is observed in bulk crystals subjected to intense laser fields. The effect provides a new way to probe attosecond dynamics in materials.
Plasmonic lasers display many unique features, but these were so far unrelated to magnetism. Recent research shows that plasmonic lasers can be switched on and off magnetically.
Spatially and temporally resolved exciton diffusion experiments on a two-dimensional WSe2/hBN/MoSe2 heterostructure are reported, where an excitation-power-dependent exciton diffusion pattern is observed and phenomena with dipole–dipole repulsive interaction are quantitatively modelled.
Researchers demonstrate the tuning of a plasmonic laser by magneto-optical effects. The results offer a new pathway for externally adjusting nanolasers.
X-ray detectors based on solution-processed metal halide perovskites are reviewed. Promising materials, fabrication techniques and device architectures are discussed, as is the potential for medical imaging applications.
By coupling plasmonic resonators with a semiconductor heterostructure, researchers control the nonlinear response by a bias voltage, thereby enabling spectral tuning, dynamic intensity modulation and dynamic beam manipulation for second-harmonic generation.
By combining scanning tunnelling microscopy and attosecond technologies, the coherent electronic motion generated in molecules by carrier-envelope-phase-stable laser pulses is visualized at ångström-scale spatial resolution and subfemtosecond temporal resolution.
The introduction of piezo-optomechanical phase shifters into silicon optical chips enables the realization of complex, controllable optical processing circuits with negligible static power dissipation, high-speed configuration and compatibility with wafer-scale fabrication.
The 2022 Breakthrough Prize in fundamental physics was awarded to Hidetoshi Katori and Jun Ye, who have been independently working on optical lattice clocks. They are the first winners from the photonics community. Nature Photonics interviewed Hidetoshi Katori on how he overcame difficulties in the study of optical lattice clocks, and what the next challenges are.
Giorgio Parisi recently shared a Nobel Prize in Physics for his contribution to the theory of complex systems. What is not well known is that photonics was crucial to validating Parisi’s predictions.
Jun Ye from the University of Colorado was recently co-awarded the 2022 Breakthrough Prize in Fundamental Physics with Hidetoshi Katori for their pioneering research on optical lattice clocks. Ye spoke to Nature Photonics about the history of clocks and his future plans.
Researchers demonstrate the transfer of photons from one storage nanocavity into another by applying a voltage pulse. A transfer efficiency of 76% is achieved.
Light-field-induced electron dynamics in a silicon dioxide dielectric system are exploited to directly measure the attosecond relative electronic delay response in the dielectric system, potentially extending the speed of data processing and information encoding into the petahertz realm.
Researchers demonstrate a microring cavity with a photonic crystal on its inside edge, which enables a simultaneous high quality factor (1,000,000) and slow light (10 times slower than for conventional whispering gallery modes). Defect modes with a high quality factor (600,000) and high localizations (20 times smaller) are also enabled.
The quantum aspect of soliton microcomb from an integrated silicon carbide microresonator is studied in several regimes — below threshold, above threshold and in the soliton regime — using a single-photon optical spectrum analyser for second-order photon correlation measurement.