• Subscribe
  • Magazine
  • Videos
  • Webinars
  • White Papers
  • Buyer's Guide
  • PhotonicsNXT
  • Get Published!
  • Back Issues >
  • Laser Focus World >
  • Volume 59, Issue 07

    • Volume 59, Issue 07

    Photo 90690609 © ibreakstock | Dreamstime.com
    Dreamstime Xxl 90690609
    Commentary

    Disruptors are the ultimate innovation

    Peter Fretty
    June 26, 2023
    When innovation is also disruptive in nature, the ripple effect can quickly turn into waves.
    (Courtesy of Arkansas State University/Arkansas Research Alliance)
    Arkansas State University uses lasers to measure the physical characteristics of cells with a flow cytometer.
    Bio&Life Sciences

    Advancements in laser tech impacting flow cytometry

    Walter Burgess
    June 19, 2023
    Flow cytometry enables rapid and precise analysis of complex samples. At the core of flow cytometry performance lies the light source used for fluorophore excitation, with lasers...
    (Image credit: Heqing Huang, Adam Overig, and Nanfang Yu)
    FIGURE 1. A schematic showing the operation of a leaky-wave metasurface (left) and a two-dimensional array of optical spots forming a Kagome pattern that’s produced by a leaky-wave metasurface (right).
    Optics

    Leaky-wave metasurfaces link free-space optics and integrated photonics

    Sally Cole Johnson
    June 9, 2023
    A new class of integrated nanophotonic devices, based on leaky-wave metasurfaces, simultaneously controls all four optical degrees of freedom: amplitude, phase, polarization ellipticity...
    Ruti Ben-Shlomi, CEO and cofounder of LightSolver.
    Lasers & Sources

    Faces in Photonics: Ruti Ben-Shlomi, LightSolver

    Sally Cole Johnson
    June 8, 2023
    Meet Ruti Ben-Shlomi, CEO and cofounder of LightSolver, a startup that recently unveiled a laser-based processing unit.
    (Image credit: Mohan Wang)
    A 4-cm-long sapphire integrated photonics chip.
    Optics

    Ability to write waveguides in sapphire opens door to sapphire photonic chips

    Sally Cole Johnson
    June 8, 2023
    University of Oxford researchers show integrated sapphire photonic chips are a realistic prospect, thanks to the ability to write hundreds of waveguides in sapphire.

    More content from Volume 59, Issue 07

    (Courtesy of Edmund Optics)
    FIGURE 1. Multiphoton, or nonlinear, microscopy, uses ultrafast laser sources for capturing high-resolution three-dimensional (3D) images with reduced photobleaching and phototoxicity compared to traditional confocal microscopy techniques. However, pulse spreading can make multiphoton microscopy images like this one become blurry.
    Lasers & Sources

    Basics of ultrafast lasers: Part 3

    Olivia Wheeler
    June 6, 2023
    This article is part three of a three-part series focused on ultrafast lasers.
    (Photo credit: Cedrik Meier)
    Christian Golla, who did most of the group’s experimental work with their tailored nonlinear metasurfaces, in the lab.
    Optics

    Tailored nonlinear metasurfaces generate higher harmonics more efficiently

    Sally Cole Johnson
    June 5, 2023
    Paderborn University researchers have tailored nanostructured nonlinear metasurfaces to generate third harmonics—tripling the frequency of incoming light—more efficiently.
    (Courtesy of SMART)
    FIGURE 1. A 300 mm wafer (a); close-up of a chip die (b); infrared micrograph with the LED turned on (c); holographic microscope setup (d); and a reconstructed holographic image (e) compared with the ground truth (f).
    Lasers & Sources

    World’s smallest silicon LED enables nanoscale holographic microscope

    Justine Murphy
    June 2, 2023
    The world’s smallest silicon light-emitting diode (LED) and holographic microscope may soon bring more high-tech scientific functions to smartphone cameras.
    (Photo credit: Brenda Ahearn/University of Michigan)
    Zheshen Zhang in his lab at the University of Michigan.
    Test & Measurement

    Entanglement-enhanced optomechanical sensors offer unprecedented precision

    Sally Cole Johnson
    June 1, 2023
    Exploiting quantum entanglement for optomechanical sensors provides counterintuitive scaling improvement—and shows off entanglement’s power as a fundamentally new resource.
    Chaouki Kasmi, chief researcher for TII’s Directed Energy Research Center.
    Executive Forum

    Powering innovation with photonics

    Chaouki Kasmi
    May 31, 2023
    The Directed Energy Research Center (DERC) at Abu Dhabi’s Technology Innovation Institute (TII), in the United Arab Emirates, is an emerging global center of excellence in optics...
    (Courtesy of Anna Maria Reuss, Fabian Voigt)
    Detailed image of neurons in a mouse brain, as captured using the Schmidt objectives.
    Bio&Life Sciences

    Schmidt telescope, scallop eyes transform microscope objectives

    Justine Murphy
    May 22, 2023
    Drawing inspiration from the uniqueness of scallop eyes, neuroscientists in Switzerland have developed microscope objectives that could make imaging samples simpler, cheaper, ...
    (Photo credit: Lightwave Logic)
    Michael Lebby, CEO of Lightwave Logic.
    Fiber Optics

    How thinking ahead shaped the fiber-optics industry

    Jose Pozo
    May 17, 2023
    Jose Pozo, Optica’s CTO, talks to Michael Lebby, CEO of Lightwave Logic, about his distinguished career and what gets him fired up today.
    (Courtesy of Thermo Fisher Scientific)
    FIGURE 1. A ceiling at the Scuola Grande di San Rocco in Venice, Italy, featuring paintings by 16th century artist Jacopo Tintoretto.
    Detectors & Imaging

    History meets advanced imaging technology

    Justine Murphy
    May 16, 2023
    FTIR microscopy is giving art and culture researchers a deeper look into artwork created centuries ago by one of Italy’s most renowned artists. And it could someday help art historians...
    (Courtesy of RÜBIG)
    (Courtesy of RÜBIG)
    Test & Measurement

    Industrial surface hardening: Shining a light on process control

    Ibrahim Sadiek
    May 10, 2023
    Mid-infrared frequency comb spectroscopy shines the way to dynamic process control of plasma nitriding.
    (Photo credit: Lunghammer/TU Graz)
    The team at the Graz University of Technology (left to right): Martin Schultze, Maryna Meretska (Capasso Group), Marcus Ossiander, and Hana Hampel.
    Optics

    Metalens controls light within the extreme ultraviolet realm

    Sally Cole Johnson
    May 9, 2023
    Researchers create the first transmissive optics technology within the extreme ultraviolet (EUV) realm to provide clean foci and images—enabling exploration of attosecond physics...
    FIGURE 1. The GE-Concept Laser MLab 200R L-PBF unit at Pontifical Catholic University of Chile (PUC; left), printing a helix using cobalt chromium alloy powder (right).
    Laser Processing

    2023 industrial laser market in Chile

    Jorge Ramos-Grez
    May 8, 2023
    This article discusses ongoing investments in laser technology, despite ever-present obstacles.
    FIGURE 1. Co first-authors Anthony White (left) and Geun Ho Ahn (center) joined their graduate advisor, Jelena Vučković, professor of electrical engineering at Stanford's Ginzton Laboratory, in developing an integrated passive nonlinear optical isolator based on ring resonators.
    Lasers & Sources

    Nanoscale laser isolator could revolutionize photonics devices

    Valerie Coffey-Rosich
    May 3, 2023
    Researchers at Stanford University’s Nanoscale and Quantum Photonics Lab created a new chip-scale laser isolator with potential for a significant impact in numerous industries...
    (Image credit: Institute of Photonics/Leibniz University Hannover)
    Artistic rendering of an on-chip quantum light source that generates entangled photons.
    Lasers & Sources

    On-chip quantum light source generates entanglement

    Sally Cole Johnson
    April 27, 2023
    Goodbye and good riddance, bulky lasers! Researchers have combined a laser cavity, noise-suppression filter, and a parametric quantum source on a chip to generate entangled states...