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  1. PEN - Penumbra, Inc.

    Yahoo Finance

    188.01-3.33 (-1.74%)

    at Thu, May 30, 2024, 4:00PM EDT - U.S. markets closed

    After Hours 187.97 -0.04 (-0.02%)

    Delayed Quote

    • Open 190.18
    • High 192.07
    • Low 185.12
    • Prev. Close 191.34
    • 52 Wk. High 348.67
    • 52 Wk. Low 180.93
    • P/E 78.67
    • Mkt. Cap 7.42B
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  3. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

  4. List of laser applications - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_applications

    High power applications, such as hardening, cladding, and deep penetrating welding, require multiple kW of optical power, and are used in a broad range of industrial processes. Micro material processing is a category that includes all laser material processing applications under 1 kilowatt. [12]

  5. Directed-energy weapon - Wikipedia

    en.wikipedia.org/wiki/Directed-energy_weapon

    Laser. Members of the Directed Energy and Electric Weapon Systems Program Office of the US Navy, fire a laser through a beam director on a Kineto Tracking Mount, controlled by a MK-15 Phalanx Close-In Weapons System. A laser weapon is a directed-energy weapon based on lasers .

  6. Scientists figure out how to make lasers nine-times ... - AOL

    www.aol.com/scientists-figure-lasers-nine-times...

    The new research, which was funded by the US Air Force, found a solution to limit the scattering and produce a high-quality, high-powered beam capable of causing major damage to a distant...

  7. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Due to their thermal conductivity, pulsed, rather than continuous wave lasers, are preferred in laser engraving applications. High peak power, low pulse duration lasers are able to ablate material off a metal engraving surface without delivering enough energy to melt the surface. Laser on stainless steel.

  8. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    Moderate and high-power lasers are potentially hazardous because they can burn the retina, or even the skin. To control the risk of injury, various specifications, for example 21 Code of Federal Regulations (CFR) Part 1040 in the US and IEC 60825 internationally

  9. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Flashlamp, laser diode. Material processing, rangefinding, laser target designation, surgery, tattoo removal, hair removal, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam). One of the most common high-power lasers.

  10. Laser ablation - Wikipedia

    en.wikipedia.org/wiki/Laser_ablation

    High power lasers clean a large spot with a single pulse. Lower power lasers use many small pulses which may be scanned across an area. In some industries laser ablation may be referred to as laser cleaning. Industrial 500W cleaning laser.

  11. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    These devices can generate high power outputs with good beam quality, wavelength-tunable narrow-linewidth radiation, or ultrashort laser pulses. In 2012, Nichia and OSRAM developed and manufactured commercial high-power green laser diodes (515/520 nm), which compete with traditional diode-pumped solid-state lasers.

  12. Blue laser - Wikipedia

    en.wikipedia.org/wiki/Blue_laser

    For high output power BBO crystals are used as frequency doublers; for lower powers, KTP is used. Output powers available are up to 5000 mW. Output powers available are up to 5000 mW. Conversion efficiency for producing 473 nm laser radiation is inefficient with some of the best lab produced results coming in at 10–15% efficient at converting ...