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  2. GreenLight Laser Therapy - Wikipedia

    en.wikipedia.org/wiki/GreenLight_Laser_Therapy

    GreenLight Laser Therapy is a medical procedure for treating benign prostatic hyperplasia. [1] It uses a laser beam to remove prostate tissue. The laser treatment is delivered through a thin and flexible fiber, which is inserted into the urethra through a cystoscope .

  3. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    The first laser, invented by Theodore Maiman in May 1960. Nd:YAG laser: 1.064 μm, (1.32 μm) Flashlamp, laser diode: Material processing, rangefinding, laser target designation, surgery, tattoo removal, hair removal, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam). One of the most common high ...

  4. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/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.

  5. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    A laser normally produces a very narrow beam of light in a single wavelength, in this case, green. Photons , the quanta of electromagnetic radiation , are released and absorbed from energy levels in atoms and molecules.

  6. Surgery for benign prostatic hyperplasia - Wikipedia

    en.wikipedia.org/wiki/Surgery_for_benign_pro...

    HoLAP uses a 550 um disposable side-firing fiber that directs the beam from a high-power 100-watt laser at a 70-degree angle from the fiber axis. The holmium wavelength is 2,140 nm, which falls within the infrared portion of the spectrum and is invisible to the naked eye.

  7. Nd:YAG laser - Wikipedia

    en.wikipedia.org/wiki/Nd:YAG_laser

    Nd:YAG laser with lid open showing frequency-doubled 532 nm green light Nd:YAG laser rod. Nd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y 3 Al 5 O 12) is a crystal that is used as a lasing medium for solid-state lasers.

  8. Chinese satellite fires green laser beams over Hawaii as ...

    www.aol.com/news/chinese-satellite-fires-green...

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  9. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    Furthermore, some lasers emit more than one wavelength of light, and this may be a particular problem with some less expensive frequency-doubled lasers, such as 532 nm "green laser pointers" which are commonly pumped by 808 nm infrared laser diodes, and also generate the fundamental 1064 nm laser beam which is used to produce the final 532 nm ...

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