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  2. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

  3. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).

  4. List of laser applications - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_applications

    Laser pointers in different colours. Many scientific, military, medical and commercial laser applications have been developed since the invention of the laser in 1958. The coherency, high monochromaticity, and ability to reach extremely high powers are all properties which allow for these specialized applications.

  5. Laser science - Wikipedia

    en.wikipedia.org/wiki/Laser_science

    Laser science or laser physics is a branch of optics that describes the theory and practice of lasers. [ 1 ] Laser science is principally concerned with quantum electronics , laser construction , optical cavity design, the physics of producing a population inversion in laser media , and the temporal evolution of the light field in the laser.

  6. Laser diode - Wikipedia

    en.wikipedia.org/wiki/Laser_diode

    The laser diode chip removed and placed on the eye of a needle for scale A laser diode with the case cut away. The laser diode chip is the small black chip at the front; a photodiode at the back is used to control output power. SEM (scanning electron microscope) image of a commercial laser diode with its case and window cut away. The anode ...

  7. 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 ...

  8. Doctors Explain If Red Light Therapy Really Works for ... - AOL

    www.aol.com/lifestyle/doctors-explain-red-light...

    Worth noting: The laser light group participants gained 0.3 inches back across all three sites two weeks after having the procedures. Red light therapy risks There are a few potential risks to ...

  9. Ion laser - Wikipedia

    en.wikipedia.org/wiki/Ion_laser

    A krypton laser is an ion laser using ions of the noble gas krypton as its gain medium.The laser pumping is done by an electrical discharge.Krypton lasers are widely used in scientific research, and in commercial uses, when the krypton is mixed with argon, it creates a "white-light" lasers, useful for laser light shows.