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  • Volume 58, Issue 05

    • Volume 58, Issue 05

    FIGURE 1. The laser beam (left) is turned into a beam pattern (right), composed of individual beamlets.
    May 2, 2022
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    April 26, 2022
    Photo 30458013 © Zestmarina | Dreamstime.com
    Dreamstime Xl 30458013
    April 25, 2022
    (Image credit: NCI-Frederick, public domain; Kinetic River Corp.)
    FIGURE 1. Cells can be characterized by several attributes, including size, nucleus shape, and presence and abundance of several hundred surface antigens identified so far. A solution of fluorophore-coupled antibodies matching a target antigen is mixed with the cell sample; the label-carrying antibodies only sticks to those cells presenting the antigens of interest. As those cells get exposed to a laser beam, the attached fluorophores emit fluorescence that identifies the cell in question.
    April 25, 2022
    (Courtesy of 3D Systems)
    3D Systems’ range of durable SLS nylon thermoplastics provide balanced, long-term mechanical properties and environmental stability tested out to 1.5 years outdoor and 8 years indoor, per ASTM testing methods.
    April 22, 2022

    More content from Volume 58, Issue 05

    FIGURE 1. The quantum technology-based gravity gradient sensor.
    Existing measurement technologies are susceptible to vibrational noise, but a practical quantum gravity gradient sensor overcomes this issue and may revolutionize our understanding...
    April 21, 2022
    FIGURE 1. A SEM image of a metaoptical element designed and manufactured by NIL Technology.
    Combining nanoimprint lithography with e-beam lithography enables the fabrication of high-quality, low-cost meta-optical elements in batch sizes suitable for mass manufacturing...
    April 20, 2022
    (Courtesy of John Deere)
    FIGURE 1. The 8R autonomous tractor is currently designed for soil tilling, which can free up farmers for more difficult tasks.
    The future of farming lies in the agriculture industry’s ability to advance and evolve. From autonomous tractors to drones, advanced technology is changing the landscape.
    April 19, 2022
    (Image credit: Center for High Energy Density Science, University of Texas at Austin)
    FIGURE 1. The Texas Petawatt Laser, a 140 J (pulse energy), 140 fs (pulse width) high-intensity laser, can generate peak power of more than 10 PW.
    Focused Energy is pursuing proton-fast ignition for clean fusion energy via high-intensity lasers and chirped-pulse amplification—with a goal of first shots on target by 2029....
    April 15, 2022
    Clinical diagnoses of skin lesions can be aided by acquiring co-registered imaging information. This image shows the skin of a patient with a delayed reaction to a tattoo, with Raman spectroscopy identifying normal epidermis, inflammatory cells, and tattoo ink with respect to a detailed LC-OCT tissue map.
    A combination of morphological cellular-scale imaging, color surface imaging, and point molecular analysis opens the door to 3D optical histology for all types of skin lesions...
    April 12, 2022
    (Courtesy of P. Jousset, GFZ German Research Centre for Geosciences)
    FIGURE 1. Researchers dig the trench for the fiber-optic cable at the site of Mount Etna (2800 m elevation, Piano delle Concazze; the Pizzi Deneri Observatory can be seen in the background.
    A new system equipped with fiber-optic cables is helping scientists observe volcanic eruptions and other activity for better understanding and predictions of potentially catastrophic...
    April 11, 2022
    (Courtesy of Wen Qiao, Soochow University)
    FIGURE 1. A new glasses-free 3D light field display system with a significantly extended viewing distance represents an important step toward compact, realistic-looking 3D displays.
    A new 3D display using flat lenses paves the way for more realistic virtual imagery.
    April 8, 2022
    (Image credit: Peter Laursen)
    The distant (blue) galaxy shines in all directions. Light close to the massive galaxy cluster (orange) gets deflected, and the light on the right gets deflected a little to the left, and the light going over the top is deflected downward. The cluster ends up acting as a lens, or magnifying glass, and since it’s caused by gravity it’s a gravitational lens.
    An international team of astronomers detected a star so incredibly far away its light took 12.9 billion years to reach Earth and be detected—thanks to NASA’s Hubble Space Telescope...
    April 7, 2022
    Gerd Altmann/Pixabay
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    A new miniature microscope is allowing researchers to watch what happens in brain cells that control movement, including walking, climbing, and other navigation.
    April 6, 2022
    Walter Burgess, co-CEO of Power Technology.
    Meet Walter Burgess, co-CEO of Power Technology and a 25-year photonics and optics industry veteran.
    April 5, 2022
    (Courtesy of the Max Planck Institute for Intelligent Systems)
    This thumb-shaped sensor uses computer vision and a deep neural network to infer haptic contact information.
    Max Planck researchers add fingertip sensitivity to robotics with a new thumb-shaped sensor.
    April 1, 2022
    (Image credit: TU Wien)
    Light travels back and forth in these two closely spaced waveguides (red and blue) and is partially reflected at their ends.
    Researchers bring concepts from topology to laser physics—without resorting to photonic lattices as done for the first realizations of topological lasers.
    March 30, 2022
    FIGURE 1. Checking for hot spots with an IR camera yields reliable measurements (a). Heat measurements of a 10-mm-long SCHOTT Luminous cylindrical diffuser (b) at a slightly elevated power level (local radiant exitance or fluence rate) of 450 mW/cm (left) and 2.5 W/cm (right) diffuser length are also shown. At left, the diffuser heats up to 20.9°C, which is only slightly above room temperature (17°C); at right, even at considerably higher power levels, the diffuser heats up to levels of 36.4°C, remaining significantly below the critical temperature of 42°C. This is an advantage of SCHOTT’s glass-based diffusers, which are inherently bonded to the fiber, thus avoiding adhesives, over other commercially available diffuser technologies (for example, those based on polymers and glued to the fiber).
    A new holistic measurement approach accounts for entire light-delivery devices, helping to improve photodynamic therapy, photoimmunotherapy, and laser interstitial thermal therapy...
    March 29, 2022
    (Image credit: Christian Gruppe)
    Photon-spin interface with the europium molecular crystal for entanglement of nuclear-spin qubits (arrows) with the help of photons (yellow).
    In a breakthrough for quantum processing, researchers show europium molecule’s nuclear spins can be used to produce an effective photon-spin interface.
    March 24, 2022
    FIGURE 1. Relative system revenue for Coherent tube cutting machines based on fiber lasers and femtosecond lasers.
    As advances in femtosecond laser cutting technology intensify, demand is surging.
    March 23, 2022