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  2. Laser hair removal - Wikipedia

    en.wikipedia.org/wiki/Laser_hair_removal

    Cryogen spray: sprayed directly onto the skin immediately before and/or after the laser pulse; Air cooling: forced cold air at -34 °C; In essence, the important output parameter when treating hair (and other skin conditions) is power density – this is a combination of energy, spot diameter and pulse duration.

  3. Tattoo removal - Wikipedia

    en.wikipedia.org/wiki/Tattoo_removal

    The weakest of all the q-switched devices and somewhat similar to the Ruby laser in that the Alexandrite creates a red light which is highly absorbed by green and dark tattoo pigments. However, the alexandrite laser color is slightly less absorbed by melanin, so this laser has a slightly lower incidence of unwanted pigmentary changes than a ...

  4. 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 ...

  5. 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).

  6. Wreckage of missing Alaska plane with 10 aboard likely found ...

    www.aol.com/plane-10-board-goes-missing...

    Wreckage of a crashed plane found about 34 miles southeast of Nome, Alaska, on Feb. 7, 2025. The crashed plane is believed to be a Bering Air Caravan carrying 10 people which went missing on Feb. 6.

  7. Synthetic alexandrite - Wikipedia

    en.wikipedia.org/wiki/Synthetic_alexandrite

    Synthetic alexandrite is an artificially grown crystalline variety of chrysoberyl, composed of beryllium aluminum oxide (BeAl 2 O 4). The name is also often used erroneously to describe synthetically-grown corundum that simulates the appearance of alexandrite , but with a different mineral composition.