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    Top Stories

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    Researcher Minghao Qi, a professor at Purdue University, with the team’s setup.
    Optics

    Optical atomic clocks get microcomb boost

    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...

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    Podcasts

    PODCAST: Interview with Olivia Wheeler-Williams, Edmund Optics

    Justine Murphy
    March 4, 2025
    Episode 41 of Following the Photons: A Photonics Podcast features Olivia Wheeler-Williams, coatings development manager at Edmund Optics.
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    Optics

    Virtual roundtable: What impact is China’s export ban on critical materials for optics having?

    Peter Fretty
    March 3, 2025
    Optics company leaders share their thoughts on the critical material export ban from China to the U.S., and how it is impacting optics manufacturers.
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    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)
    Test & Measurement

    All-optical nanoscale sensor of force changes intensity when pushed or pulled

    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...

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    Featured Media

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    Photonics Hot List: February 28, 2025

    Justine Murphy
    Feb. 28, 2025
    In this episode: Microcomb chips transform atomic clocks, the latest photonics business news, and black germanium boosts infrared photodiode responsivity.
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    Photonics Hot List: February 21, 2025

    Justine Murphy
    Feb. 21, 2025
    In this episode: Holograms push next-level digital security, the latest business news roundup, and thin-film polariton filters break the fundamental limit of angular dispersion...
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    Lantana – World's Smallest in Its Class!

    QD Laser Inc
    Feb. 17, 2025
    QD Laser, Inc. (Japan) proudly introduces “Lantana,” the world’s smallest all-in-one compact visible laser (532, 561, 594 nm) with a built-in driver in its class. Its high-quality...

    Leadership in Lasers and Photonics

    Welcome to Laser Focus World's Leadership in Lasers and Photonics program.

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