• Test & Measurement

    The laserfocusworld.com Test & Measurement channel features articles and other content that discuss components and systems to quantify photonics.

    Recent

    Credit: NSWC Corona
    FIGURE 1. NSWC Corona chemical sensor patents’ timeline.
    (Image credit: MKS Ophir)
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    © Endeavor Business Media
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    (Credit: Phlux Technology)
    FIGURE 1. The functional elements of a time-of-flight (ToF) laser rangefinder (LRF) where the return signal is detected by an avalanche photodiode (APD).
    (Image credit: Gigahertz-Optik)
    gigahertzoptik
    © Endeavor Business Media
    lfw_ftpdaniel_shaddockgraphiclandscape

    Highlights

    (Image credit: 4D Technology)
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    The 1-Mpixel AccuFiz SWIR Fizeau interferometer operates around the 1500 nm wavelength.
    (Photo credit: Chalmers University of Technology)
    Researcher Minghao Qi, a professor at Purdue University, with the team’s setup.
    Justine Murphy
    March 5, 2025
    Atomic clocks and their accuracy are crucial for exact time of day and global positioning in technology like smartphones, GPS, and computers. Now, researchers are working to boost...
    (Image credit: Specialised Imaging)
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    The SI-VT2 ballistic velocity measurement system performs time-of-flight and velocity measurements with 5-ns resolution using three input channels.
    (Photo credit: William P.D. Hayes/Columbia Engineering)
    Natalie Fardian-Melamed in the lab working on a combo scanning probe—an inverted-optical microscope to explore single photon avalanching nanocrystal mechano-optics and photophysics. (Photo credit: William P.D. Hayes/Columbia Engineering)
    Sally Cole Johnson
    Feb. 27, 2025
    Researchers discover photon avalanching nanoparticles are supersensitive to mechanical force—and nanosensors they went on to create are poised to redefine what’s possible in terms...
    (Image credit: Metrohm)
    metrohm
    Metrohm USA
    Feb. 19, 2025
    The TacticID-1064 ST performs material identification using see-through Raman technology.

    Recommended

    (Image credit: SMART DiSTAP)
    Lead researchers Dr. Song Wang (left), a research scientist at SMART DiSTAP, and Dr. Yangyang Han (right), a senior postdoctoral associate at SMART DiSTAP.
    Justine Murphy
    Feb. 17, 2025
    It’s not always easy to tell if a plant is dehydrated, and sometimes it’s too late to save it. But a sensor designed by an international team of scientists detects distress in...
    (Photo credit: Konstantin Vodopyanov/CREOL)
    The team’s dual-comb spectroscopy system produces precise and stable frequencies.
    Sally Cole Johnson
    Jan. 15, 2025
    High-res dual-comb spectroscopy system generates light across two ultrabroadband ultraviolet (UV) spectral regions.
    (Image credit: Santec)
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    Santec
    Jan. 14, 2025
    The SPA-110 swept photonics analyzer uses optical frequency-domain reflectometry technology.
    (Image credit: LumeDEL)
    lumedel
    LumeDEL LLC
    Dec. 31, 2024
    The NewDEL Model X4010 fiber-coupled LED source serves as a long-life replacement for halogen lamps.
    (Image credit: Keyence)
    keyence
    The LJ-S Series 3D laser snapshot sensors are calibrated measurement devices.