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  1. PEN - Penumbra, Inc.

    Yahoo Finance

    192.71+4.68 (+2.49%)

    at Tue, Jun 4, 2024, 11:02AM EDT - U.S. markets close in 4 hours 54 minutes

    Nasdaq Real Time Price

    • Open 188.00
    • High 192.88
    • Low 188.00
    • Prev. Close 188.04
    • 52 Wk. High 348.67
    • 52 Wk. Low 180.93
    • P/E 80.63
    • Mkt. Cap 7.47B
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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. Blue laser - Wikipedia

    en.wikipedia.org/wiki/Blue_laser

    diode-pumped solid-state infrared lasers with frequency-doubling to 408nm; upconversion of direct diode semiconductor lasers via thulium- or praseodymium-doped fibers at 480 nm; metal vapor, ionized gas lasers of helium-cadmium at 442 nm and 10200 mW; argon-ion lasers at 458 and 488 nm

  5. Diode-pumped solid-state laser - Wikipedia

    en.wikipedia.org/wiki/Diode-pumped_solid-state_laser

    A powerful (>200 mW) 808 nm wavelength infrared GaAlAs laser diode pumps a neodymium-doped yttrium aluminium garnet (Nd:YAG) or a neodymium-doped yttrium orthovanadate (Nd:YVO 4) crystal which produces 1064 nm wavelength light from the main spectral transition of neodymium ion.

  6. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Nd:YAP laser (yttrium aluminium perovskite) 1.0646 μm [7] Flashlamp, laser diode. Surgery, tattoo removal, hair removal, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam) Nd:Cr:YAG laser. 1.064 μm, (1.32 μm) solar radiation. Experimental production of nanopowders.

  7. Laser ablation - Wikipedia

    en.wikipedia.org/wiki/Laser_ablation

    Laser ablation or photoablation (also called laser blasting) is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates.

  8. Excimer laser - Wikipedia

    en.wikipedia.org/wiki/Excimer_laser

    An excimer laser. An excimer laser, sometimes more correctly called an exciplex laser, is a form of ultraviolet laser which is commonly used in the production of microelectronic devices, semiconductor based integrated circuits or "chips", eye surgery, and micromachining . Since the 1960s, excimer lasers have been widely used in high-resolution ...

  9. Dye laser - Wikipedia

    en.wikipedia.org/wiki/Dye_laser

    A dye laser uses a gain medium consisting of an organic dye, which is a carbon-based, soluble stain that is often fluorescent, such as the dye in a highlighter pen. The dye is mixed with a compatible solvent, allowing the molecules to diffuse evenly throughout the liquid.

  10. Laser designator - Wikipedia

    en.wikipedia.org/wiki/Laser_designator

    A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively.

  11. Stephens Akro - Wikipedia

    en.wikipedia.org/wiki/Stephens_Akro

    Leo Loudenslager 's Akro Laser 200 was a particularly successful development with a 200 hp (150 kW) Lycoming IO-360 engine; initially a standard Akro apart from the engine, it later acquired a different wing airfoil, lightened fuselage and revised, lowered canopy with the decking behind it raised.

  12. Nuclear pumped laser - Wikipedia

    en.wikipedia.org/wiki/Nuclear_pumped_laser

    Nuclear pumped laser. A nuclear pumped laser is laser pumped with the energy of fission fragments. The lasing medium is enclosed in a tube lined with uranium-235 and subjected to high neutron flux in a nuclear reactor core. The fission fragments of the uranium create excited plasma with inverse population of energy levels, which then lases.