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  • The intrinsic Kerr nonlinearity in ring resonators is exploited to demonstrate passive isolation of a continuous-wave laser. Up to 35-dB isolation with 5-dB insertion loss was achieved on-chip.

    • Alexander D. White
    • Geun Ho Ahn
    • Jelena Vučković
    Article
  • The free-carrier dispersion effect with photo-excited free carriers provides all-optical control of the resonance of photonic crystal microcavities. Using this technique, a spatial light modulator comprising optically addressed cavity arrays has been developed for high-efficiency, high-bandwidth spatiotemporal modulation of light.

    • Volkan Gurses
    News & Views
  • The 2022 Nobel Prize in Physics celebrates the profound impact of quantum entanglement, which underpins many modern quantum technologies such as quantum cryptography and computing.

    Editorial
  • Experimental confirmation that the Gouy phase can modify the photonic de Broglie wavelength opens up many exciting directions in metrology using quantum systems with higher-order Gaussian modes.

    • Xuemei Gu
    • Mario Krenn
    News & Views
  • Suppression of exciton–vibration coupling yields organic light-emitting diodes that emit at 1,000 nm in the NIR-II spectral region, which is important for biological imaging.

    • Alessandro Minotto
    News & Views
  • Englund et al. demonstrate a programmable photonic crystal cavity array, enabling the spatiotemporal control of a 64 resonator, two-dimensional spatial light modulator with nanosecond- and femtojoule-order switching.

    • Christopher L. Panuski
    • Ian Christen
    • Dirk R. Englund
    Article
  • Ultrasound-induced gas bubbles in tissue can temporarily minimize optical scattering, enabling laser light to be focused at greater depth for higher-resolution imaging.

    • Paul Beard
    • Kishan Dholakia
    News & Views
  • The Breakthrough Prize Foundation has awarded two prizes for pioneering theoretical and experimental research in quantum science.

    Editorial
  • Several research groups have now succeeded in achieving lasing in free-electron lasers (FELs) driven by compact plasma wakefield accelerators. In the future, the approach may ultimately lead to a new breed of much smaller, more affordable FELs.

    • Oliver Graydon
    Meeting Report