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    • Optics

    The laserfocusworld.com Optics channel features articles and other content that discuss precision optical components, systems, and applications.

    Recent

    (Image credit: MKS Newport)
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    (Photo credit: Jenoptik Optical Systems LLC)
    Jay Kumler (February 1, 1964 - February 10, 2025).
    (Image credit: Focuslight Technologies)
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    (Image credit: Excelitas Technologies)
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    (Photo credit: Volker Lannert/University of Bonn)
    Researchers at the University of Bonn’s Institute of Applied Physics—shown here (from left) Niels Wolf, Prof. Dr. Martin Weitz, Andreas Redmann, Dr. Frank Vewinger, and Dr. Julian Schmitt—have designed an approach that generates complex states of light.
    (Image credit: USGS)
    Estimated net decrease in U.S. gross domestic product at different levels of restrictions of China's net exports of gallium (a) or germanium (b) by industry.

    Highlights

    (Image credit: IDTechEx)
    FIGURE 1. The photonic integrated circuit (PIC) technology market. (Image credit: IDTechEx)
    Optics

    Photonic integrated circuit market to reach $54B by 2035

    Sam Dale
    Feb. 26, 2025
    IDTechEx shares technologies and trends emerging within the photonic integrated circuit market.
    © Endeavor Business Media
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    Podcasts

    PODCAST: Interview with Todd Haugen, Enablence Technologies

    Justine Murphy
    Feb. 25, 2025
    Episode 40 of Following the Photons: A Photonics Podcast features Todd Haugen, CEO of Enablence Technologies, a supplier of optical chips based on PLC technology.
    (Photo credit: Artiom Skripka)
    Artiom Skripka in front of a fume hood where the scientists synthesize their nanomaterials. (Photo credit: Artiom Skripka)
    Optics

    Optically bistable nanocrystals?

    Sally Cole Johnson
    Feb. 20, 2025
    Scientists discover a robust and scalable nanomaterial can act as a binary optical switch or a tiny memory unit—and this all-optical process can be controlled to store information...
    (Photo credit: Mikko Raskinen)
    Professor Hele Savin (left) and her group used the Micronova micro- and nanofabrication center at Aalto University to fabricate their germanium infrared photodiodes.
    Detectors & Imaging

    Black germanium boosts infrared photodiode responsivity

    Sally Cole Johnson
    Feb. 19, 2025
    Researchers create a germanium infrared photodiode that’s 35% more responsive at 1.55 µm—a common wavelength for telecommunications—than its other germanium and indium gallium...
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    Executive Forum

    Can silicon photonics overcome scaling challenges for AI and data centers?

    René Jonker
    Feb. 13, 2025
    Scaling silicon photonics for AI and data centers faces innovation hurdles in four key areas: Energy efficiency, manufacturing and packaging, ecosystem development, and cost optimizatio...

    Recommended

    FIGURE 1. Cooling laser diode in a TOSA package.
    Software & Accessories

    Optical transceivers can beat the heat in the era of high-speed data centers

    Andrew Dereka
    Jan. 16, 2025
    Optical transceivers designed for longer ranges require precise temperature control to maintain laser stability and performance—and thermoelectric coolers provide a solution.
    (Image credit: AmeriCOM/DPOC)
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    Optics

    Meet AmeriCOM’s Defense Precision Optics Consortium

    Sally Cole Johnson
    Dec. 18, 2024
    The Defense Precision Optics Consortium, the research and manufacturing arm of the American Center for Optics Manufacturing (AmeriCOM), is open for business and accepting members...
    (Image credit: MRSI Mycronic)
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    Lasers & Sources

    Epoxy dispenser provides 25-µm standard accuracy

    Dec. 11, 2024
    The MRSI-175Ag epoxy dispenser has multiple dispensing methods and materials.
    (Image credit: B. Ko et al., Adv. Funct. Mater.; doi:10.1002/adfm.202410613)
    External cooling performance of the radiative cooler.
    Optics

    Clear cooling film regulates solar heat

    Justine Murphy
    Dec. 6, 2024
    A transparent film based on radiative cooling could someday help regulate solar heat for environmental applications and architecture.
    FIGURE 1. Schematic of a system used to analyze carbon disulfide (CS2) Kerr gate [3]. It highlights the importance of polarizing sheets (magenta dotted boxes) and ND filters (blue dotted boxes).
    Optics

    Optical transmission of polaroid sheet polarizers and neutral-density filters

    Michael Pena
    Dec. 5, 2024
    Neutral-density (ND) filters and polarizers are two common optical components for applications within the visible and near-infrared (NIR) ranges. We measured light transmission...