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  2. Lasers in cancer treatment - Wikipedia

    en.wikipedia.org/wiki/Lasers_in_Cancer_Treatment

    Lasers are used to treat cancer in several different ways. Their high-intensity light can be used to shrink or destroy tumors or precancerous growths. Lasers are most commonly used to treat superficial cancers (cancers on the surface of the body or the lining of internal organs) such as basal-cell skin cancer and the very early stages of some cancers, such as cervical, penile, vaginal, vulvar ...

  3. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    Laser safety. Laser radiation safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.

  4. Ford Laser - Wikipedia

    en.wikipedia.org/wiki/Ford_Laser

    Ford Laser. The Ford Laser is a compact car, originally a subcompact car in the first three generations, which was sold by Ford in Asia, Oceania, and parts of South America and Africa. It has generally been available as a sedan or hatchback, although convertible, wagon and pick-up versions have also been available in different markets.

  5. Blue laser - Wikipedia

    en.wikipedia.org/wiki/Blue_laser

    A blue laser emits electromagnetic radiation with a wavelength between 400 and 500 nanometers, which the human eye sees in the visible spectrum as blue or violet. [1] Blue lasers can be produced by: direct, inorganic diode semiconductor lasers based on quantum wells of gallium (III) nitride at 380-417nm [2] [3] or indium gallium nitride at 450 ...

  6. Second-harmonic generation - Wikipedia

    en.wikipedia.org/wiki/Second-harmonic_generation

    Second-harmonic generation ( SHG ), also known as frequency doubling, is the lowest-order wave-wave nonlinear interaction that occurs in various systems, including optical, radio, atmospheric, and magnetohydrodynamic systems. [1] As a prototype behavior of waves, SHG is widely used, for example, in doubling laser frequencies.

  7. Laser sight (firearms) - Wikipedia

    en.wikipedia.org/wiki/Laser_sight_(firearms)

    Laser sight (firearms) A laser sight is a device attached or integral to a firearm to aid target acquisition. Unlike optical and iron sights where the user looks through the device to aim at the target, laser sights project a beam onto the target, providing a visual reference point. Although lasers in the visible part of the spectrum are most ...