Editor’s Picks

  1. Quantum Phase Transition Observed For The First Time

    A group of scientists led by Johannes Fink from the Institute of Science and Technology Austria (IST Austria) reported the first experimental observation of a first-order phase transition in a dissipative quantum system.

  2. World's First Flat Lens Focusing On Continual Bandwidth Of Colors

    Harvard engineers have built the first achromatic metalens (AML) that operates over a continual bandwidth of colors, from blue to green, through a technique called dispersion engineering and via an ultra thin array of nanopillars.

  3. ‘Corrective Glass’ For Mass Spectrometry Imaging

    The chemical analysis of biological tissues with three-dimensional shapes has been a major problem so far. Researchers at the Max Planck Institute for Chemical Ecology in Jena, Germany, have now improved mass spectrometry imaging in such a way that the distribution of molecules can also be visualized on rippled, hairy, bulgy or coarse surfaces.

  4. Surprising Spin Behavior At Room Temperature

    Scientists at Tokyo Institute of Technology have observed almost purely circularly polarized electroluminescence from GaAs-based spin-polarized light-emitting diodes at room temperature, with no external magnetic field. This behavior indicates the presence of spin-dependent nonlinear processes, which may allow the development of semiconductor-based spin-photonic devices in the future.

  5. Pure Iron Grains Are Rare In The Universe

    Scientists are unsure what form iron takes in outer space even though it is one of its most abundant refractory elements. Extensive analysis of meteorites and other measurements show only low levels of gaseous iron and solid iron compounds, such as iron oxides, sulfides and carbides.

  6. Measuring Time Without A Clock

    EPFL scientists have been able to measure the ultrashort time delay in electron photoemission without using a clock. The discovery has important implications for fundamental research and cutting-edge technology.

  7. Wave Of The Future: Terahertz Chips A New Way Of Seeing Through Matter

    Electromagnetic pulses lasting one millionth of a millionth of a second may hold the key to advances in medical imaging, communications and drug development. But the pulses, called terahertz waves, have long required elaborate and expensive equipment to use.

  8. Quantum RAM: Modelling The Big Questions With The Very Small

    When it comes to studying transportation systems, stock markets and the weather, quantum mechanics is probably the last thing to come to mind.

  9. Perfection In Sight: SLAC Receives New Mirrors For X-Ray Laser

    Scientists are installing new mirrors to improve the quality of the X-ray laser beam at the Department of Energy’s SLAC National Accelerator Laboratory.

  10. Scientists Trap Light And Sound Vibrations Together In One Nanocrystal
    Researchers at the California Institute of Technology (Caltech) have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the same tiny space.