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  2. 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. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...

  3. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    Low to medium power laser diodes are used in laser pointers, laser printers and CD/DVD players. Laser diodes are also frequently used to optically pump other lasers with high efficiency. The highest-power industrial laser diodes, with power of up to 20 kW, are used in industry for cutting and welding.

  4. Peresvet (laser weapon) - Wikipedia

    en.wikipedia.org/wiki/Peresvet_(laser_weapon)

    The Peresvet ( Russian: Пересвет ), named after Alexander Peresvet, is a Russian laser weapon for air defense and anti-satellite warfare. [4] [3] [5] The Peresvet is one of the six new Russian strategic weapons unveiled by Russian President Vladimir Putin on 1 March 2018. As of May 2022, five units of the system are claimed to be in ...

  5. Laser Mégajoule - Wikipedia

    en.wikipedia.org/wiki/Laser_Mégajoule

    Laser Mégajoule. Coordinates: 0°47′15.91″W. Laser Mégajoule ( LMJ) is a large laser -based inertial confinement fusion (ICF) research device near Bordeaux, France, built by the French nuclear science directorate, Commissariat à l'Énergie Atomique (CEA). Laser Mégajoule plans to deliver over 1 MJ of laser energy to its targets ...

  6. Laser ultrasonics - Wikipedia

    en.wikipedia.org/wiki/Laser_ultrasonics

    The generation lasers are short pulse (from tens of nanoseconds to femtoseconds) and high peak power lasers. Common lasers used for ultrasound generation are solid state Q-Switched Nd:YAG and gas lasers (CO 2 or Excimers). The physical principle is of thermal expansion (also called thermoelastic regime) or ablation. In the thermoelastic regime ...

  7. Carbon-dioxide laser - Wikipedia

    en.wikipedia.org/wiki/Carbon-dioxide_laser

    Because of the high power levels available (combined with reasonable cost for the laser), CO 2 lasers are frequently used in industrial applications for cutting and welding, while lower power level lasers are used for engraving. In selective laser sintering, CO 2 lasers are used to fuse particles of plastic powder into parts.

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