Volume 15

  • No. 6 June 2021

    Scattering invariant modes

    The image depicts a simulated intensity distribution of a scattering invariant mode (SIM) propagating through a thin layer of disordered material. The defining property of SIMs is that their output pattern is identical to the case of free space propagation. As shown in this issue, SIMs can be realized experimentally in much thicker materials that scatter light strongly.

    See Mosk et al.

  • No. 5 May 2021

    Diffractive optical computing

    Artistic impression of optical computing performed by modulating the incident light with layers of diffractive structures, comprised of programmable liquid crystal array. A photodetector array then converts diffracted photons into electrons to realize a reconfigurable optoelectronic processor.

    See Dai et al.

  • No. 4 April 2021

    Photonic crystal lasers

    The introduction of two-dimensional spatial gain and loss into a photonic crystal laser leads to high-peak-power and short-pulse operation with a narrow beam divergence.

    See Noda et al.

  • No. 3 March 2021

    Polariton interferometry

    Artistic impression of nanoimaging of molecular vibrations coupled to phonon polaritons (blue wave) in a thin layer of hexagonal boron nitride. Nanoimaging is performed by recording the light scattered from a sharp metal tip that is scanned across the sample surface.

    See Hillenbrand et al.

  • No. 2 February 2021

    Perovskite nanocrystals shine brightly

    Doping perovskite nanocrystals with guanidinium is shown to supress defects and improve radiative recombination, resulting in green LEDs that are more efficient and brighter.

    See Lee et al.

  • No. 1 January 2021

    Integrated quantum detectors

    Image of a quantum optical chip wire-bonded to an electronics chip to form a homodyne detector for measuring squeezed light. This approach leads to more scalable and higher performance devices for quantum information processing.

    See Matthews et al.