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  2. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    Laser pointer. Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. 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.

  3. Laser construction - Wikipedia

    en.wikipedia.org/wiki/Laser_construction

    Laser construction. Schematic diagram of a typical laser, showing the three major parts. A laser is constructed from three principal parts: An energy source (usually referred to as the pump or pump source ), A gain medium or laser medium, and. Two or more mirrors that form an optical resonator.

  4. 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.

  5. Carbon-dioxide laser - Wikipedia

    en.wikipedia.org/wiki/Carbon-dioxide_laser

    The carbon-dioxide laser ( CO2 laser) was one of the earliest gas lasers to be developed. It was invented by Kumar Patel of Bell Labs in 1964 [1] and is still one of the most useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available. They are also quite efficient: the ratio of output ...

  6. Solid-state laser - Wikipedia

    en.wikipedia.org/wiki/Solid-state_laser

    Laser rods (from left to right): Ruby, alexandrite, Er:YAG, Nd:YAG. A solid-state laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. [1] Semiconductor -based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers, called ...

  7. Laser cutting - Wikipedia

    en.wikipedia.org/wiki/Laser_cutting

    Laser cutting is a technology that uses a laser to vaporize materials, resulting in a cut edge. While typically used for industrial manufacturing applications, it is now used by schools, small businesses, architecture, and hobbyists. Laser cutting works by directing the output of a high-power laser most commonly through optics.

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