Tunable free-electron X-ray radiation from van der Waals materials

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0689-7Tunable X-ray generation, from ultrathin van der Waals materials impacted by relativistic electrons, is demonstrated.

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Vectorized optoelectronic control and metrology in a semiconductor

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0690-1Engineering of the spatial distribution of currents in a semiconductor is demonstrated using vectorial arrangement of optical fields, enabling an ultrafast magnetic field source.

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Extreme ionization of gold atoms

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0694-xGold atoms are stripped of 72 of their electrons to form nitrogen-like Au72+ ions inside extremely hot plasmas by irradiating gold foils and nanowires with highly relativistic femtosecond laser pulses.

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Harmonic spin–orbit angular momentum cascade in nonlinear optical crystals

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0691-0An experimental study of the second-harmonic-generation process in a beta barium borate crystal shows that homogeneous optical crystals can exhibit the rich physics of the spin–orbit angular momentum cascade in the nonlinear optical regime.

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Diamond photonics is scaling up

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0695-9The integration of diamond waveguide arrays into an aluminium nitride photonic platform offers hope for the realization of scalable chips for quantum information processing.

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Tunable pseudo-magnetic fields for polaritons in strained metasurfaces

Nature Photonics, Published online: 14 September 2020; doi:10.1038/s41566-020-0688-8A method to tune pseudo-magnetic fields for polaritons on a strained metasurface is demonstrated.

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Tunable free-electron X-ray radiation from van der Waals materials

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Diamond photonics is scaling up

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Vectorized optoelectronic control and metrology in a semiconductor

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Tunable pseudo-magnetic fields for polaritons in strained metasurfaces

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