• Test & Measurement

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

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    (Image credit: Gentec-EO)
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    (Image credit: MKS Newport)
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    (Image credit: TRIOPTICS)
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    Credit: NSWC Corona
    FIGURE 1. NSWC Corona chemical sensor patents’ timeline.
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    Highlights

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    Justine Murphy
    April 1, 2025
    Episode 45 of Following the Photons: A Photonics Podcast features Cicely Rathmell, VP of marketing at Wasatch Photonics.
    (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).
    Ben White
    March 21, 2025
    By offering improved sensitivity, extended range, and faster recovery times, the latest generation of avalanche photodiodes (APDs) are poised to revolutionize the field of distance...
    (Image credit: Gigahertz-Optik)
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    Gigahertz-Optik Inc
    March 19, 2025
    The RCH-XXXc UV cylindrical irradiance detectors measure the effective cylindrical UV irradiance applied in UV curing and UVC germicidal applications.
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    Justine Murphy
    March 11, 2025
    Episode 42 of Following the Photons: A Photonics Podcast features Daniel Shaddock, CEO and co-founder of Liquid Instruments.
    (Image credit: 4D Technology)
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    The 1-Mpixel AccuFiz SWIR Fizeau interferometer operates around the 1500 nm wavelength.

    Recommended

    (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: Ibsen Photonics)
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    Ibsen Photonics A/S
    Jan. 26, 2025
    The Eagle Raman HR spectrometer provides Raman spectra, based on the company’s own transmission gratings.
    Image provided by Edwards Vacuum
    Edwards nEXT Pump
    Edwards Vacuum Inc
    Jan. 23, 2025
    Clean, quiet and hydrocarbon-freeEDWARDS VACUUM has developed a new series of magnetically levitated turbomolecular pumps that can withstand the demands of both challenging industrial...
    (Image credit: MKS Ophir)
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    The Ophir 20K-W water-cooled, high-power laser sensor measures powers from 100 W to 20 kW.
    FIGURE 1. Time-of-flight (left): Blooming after treatment shows points removed near retro reflective vs. FMCW (right): No treatment; the raw data point shows no blooming impact.
    Clement Kong
    Jan. 17, 2025
    Among the various light detection and ranging (LiDAR) technologies, frequency-modulated continuous-wave (FMCW) LiDAR has emerged as a powerful alternative to time-of-flight (ToF...