Editor’s Picks

  1. Shaping Light Lets 2D Microscopes Capture 4D Data

    Rice University researchers have added a new dimension to their breakthrough technique that expands the capabilities of standard laboratory microscopes.

  2. Engineered Metasurfaces Reflect Waves In Unusual Directions

    In our day lives, we can find many examples of manipulation of reflected waves such as mirrors to see our reflections or reflective surfaces for sound that improve auditorium acoustics. When a wave impinges on a reflective surface with a certain angle of incidence and the energy is sent back, the angle of reflection is equal to the angle of incidence.

  3. Researchers Discover Anti-Laser Masquerading As Perfect Absorber

    Researchers at Duke University have discovered that a perfect absorber of electromagnetic waves they described in a 2017 paper can easily be tweaked into a sort of “time-reversed laser” known as a coherent perfect absorber (CPA).

  4. Laser Pulses Light The Way To Tuning Topological Materials For Spintronics And Quantum Computing

    Scientists at the U.S. Department of Energy’s Ames Laboratory have discovered a means of controlling the surface conductivity of a three-dimensional (3D) topological insulator, a type of material that has potential applications in spintronic devices and quantum computing.

  5. A Polariton Filter Turns Ordinary Laser Light Into Quantum Light

    An international team of researchers led out of Macquarie University has demonstrated a new approach for converting ordinary laser light into genuine quantum light.

  6. Laser-Induced Graphene Gets Tough, With Help

    Laser-induced graphene (LIG), a flaky foam of the atom-thick carbon, has many interesting properties on its own but gains new powers as part of a composite.

  7. Scientists Build The Smallest Optical Frequency Comb To-Date

    Scientists from EPFL and the Russian Quantum Center have built a photonic integrated, compact, and portable soliton microcomb source. The device is less than 1 cm3 in size, and is driven by an on-chip indium phosphide laser consuming less than 1 Watt of electrical power. It can be used in LIDAR, data center interconnects, and even satellites

  8. Questions In Quantum Computing: How To Move Electrons With Light

    Tiny moving particles make up everything in our physical world— including modern electronics, whose function relies on the movement of negatively-charged electrons. Physicists strive to understand the forces that push these particles into motion, with the goal of harnessing their power in new technologies.

  9. Earth's Magnetic Field Measured Using Artificial Stars At 90 Kilometers Altitude

    The mesosphere, at heights between 85 and 100 kilometers above the Earth's surface, contains a layer of atomic sodium. Astronomers use laser beams to create artificial stars, or laser guide stars (LGS), in this layer for improving the quality of astronomical observations.

  10. Precision Automation Actuator Features Closed-Loop Force and Position Control

    PI (Physik Instrumente) has recently release a new series of actuators based on PIMagTM non-contacting voice-coil linear motor technology. With low wear and a long lifetime, these new actuators are built to ensure greater dynamics and positioning accuracy while offering different travel and force capabilities, and custom engineered solutions.