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  • Volume 59, Issue 09

    • Volume 59, Issue 09

    Photo 153856308 © Jakkapan Jabjainai | Dreamstime.com
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    Commentary

    Persistent photonics

    Peter Fretty
    Aug. 23, 2023
    The growth rate across the entire photonics community has been nothing short of astonishing.
    (Courtesy of Dwight Coleman)
    FIGURE 1. InVADER project leader Pablo Sobron explains the system’s mission to the team of scientists onboard E/V Nautilus before ocean deployment.
    Test & Measurement

    Robotic vehicle plunges into ocean exploration with an optical sensing platform

    Justine Murphy
    Aug. 9, 2023
    An optical sensing platform is helping identify, analyze, and catalog marine minerals and biodiversity along the sea floor. And as the technology matures, researchers say extraterrestri...
    (Image credit: Ursula Cardenas Mamani)
    Illustration of the anomalous photon bunching effect—all photons coalesce into two output beams with an excessive probability. (Image credit: Ursula Cardenas Mamani)
    Science & Research

    Unexpected anomaly discovered in photon bunching

    Sally Cole Johnson
    Aug. 8, 2023
    Quantum physicists prove it’s possible to enhance photon bunching by fine-tuning the polarization of photons—contradicting a rule in quantum photonics.
    (Courtesy of Arnaldo Leal-Junior, UFES)
    FIGURE 1. Smart pants integrated with 30 polymer optical fiber sensors in each leg (inset) can noninvasively track a person’s movements and specifically identify the activities.
    Fiber Optics

    Smarty-pants: Integrated fiber-optic fabrics

    Justine Murphy
    Aug. 7, 2023
    Fiber-optic sensors are poised to provide information about its wearer’s types of movement and how it’s impacting their health.
    FIGURE 1. This illustration shows the concept of the team’s setup.
    Science & Research

    Quantum interference overcomes photoexcitation annihilation

    Sally Cole Johnson
    Aug. 4, 2023
    Quantum phase relationships of photoexcitations impact the behavior of excitons—photoexcitations don’t always annihilate each other when quantum phases interfere destructively...

    More content from Volume 59, Issue 09

    (Courtesy of POET Technologies)
    POET Technologies' LightBar packaged light source is an optical engine with high-power continuous-wave (CW) lasers passively attached to its optical interposer.
    Optics

    Photonics hardware is powering ChatGPT and the AI revolution

    Suresh Venkatesan
    Aug. 3, 2023
    The AI market is red hot in 2023, but for the technology to remain in high demand in the years ahead, it needs to deliver more efficient and affordable solutions. Photonics-enabled...
    (Image credit: Peter Baum and Maxim Tsarev/Universität Konstanz)
    The electron beam travels from left to right and, in the cylindrical vacuum chamber on the right, laser-modulated into few-attosecond-long pulses by two-photon transitions.
    Lasers & Sources

    Two-photon compression reveals quantum effects

    Sally Cole Johnson
    Aug. 2, 2023
    University of Konstanz physicists in Germany achieve electron signals of attosecond duration—blazingly fast at five billionths of a nanosecond—and redefine what’s possible for...
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    Home

    2023 Innovators Awards: Meet the honorees

    Peter Fretty
    Aug. 1, 2023
    For the sixth straight year, Laser Focus World held its Innovators Awards program, which celebrates the disparate and innovative technologies, products, and systems found in the...
    (Courtesy of Hong Kong Polytechnic University)
    Hong Kong Polytechnic University Prof. Gang Li and his team invented a technique to achieve a breakthrough efficiency—nearly 20%—in organic solar cells.
    Detectors & Imaging

    Organic solar cells reach record 19% efficiency

    Justine Murphy
    July 28, 2023
    An achievement in organic solar cell development may transform solar energy and the devices that use it.
    (Image credit: Bingzhao Li and Qixuan Lin)
    A new type of LiDAR taps sound waves running over a chip’s surface to steer a laser beam like a searchlight, which will help autonomous vehicles detect and determine the distance objects like pedestrians or other vehicles.
    Optics

    Acousto-optic beam-steering chip unleashes LiDAR in tiny footprint

    Sally Cole Johnson
    July 26, 2023
    University of Washington researchers create a chip-scale laser beam-steering device—no moving parts—for scanning LiDAR systems. By exploiting Brillouin scattering, the device ...
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    Executive Forum

    The drive for reshoring

    John Dexheimer
    July 24, 2023
    In this editorial, John Dexheimer looks at whether the drive for reshoring is rhetoric and unintended consequences for the photonics sector.
    (Courtesy of Yuhyun Ji, Purdue University)
    A potential mHealth application is for noninvasive blood hemoglobin quantification and oxygen saturation levels. The easily accessible inner eyelid (palpebral conjunctiva) is used as a sensing site (inset).
    Bio&Life Sciences

    Turn smartphones into mobile healthcare tools

    Justine Murphy
    July 21, 2023
    Healthcare represents a world of opportunity for smartphones when complementing hyperspectral imaging techniques with an AI-based algorithm.
    (Image credit: Lingjie Kong)
    FIGURE 1. Schematic of neurochemical sensing in vivo with FOPECs.
    Bio&Life Sciences

    Plug-and-play fiber-optic sensors based on engineered cells enable in vivo monitoring of neurochemicals

    Sally Cole Johnson
    July 20, 2023
    Researchers in China develop fiber-optic tool based on engineered cells (FOPECs) for real-time sensing of neurochemicals at high specificity in a variety of animal species and...
    (Photo credit: Infleqtion)
    Infleqtion supplies key component technologies to many of the world’s research labs and early commercial leaders in quantum machine development, from individual components to complete plug-and-play solutions.
    Executive Forum

    Taking photonics along for the quantum business ride

    Jose Pozo
    July 12, 2023
    In this interview, Jose Pozo, Optica’s CTO, talks to Scott Faris, CEO of Infleqtion, about his career as a serial business leader and entrepreneur and what’s next for quantum ...