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    0.90-0.04 (-4.12%)

    at Wed, May 29, 2024, 4:00PM EDT - U.S. markets open in 3 hours 32 minutes

    Pre Mkt 0.91 +0.01 (+0.95%)

    Nasdaq Real Time Price

    • Ask Price 0.90
    • Bid Price 0.90
    • P/E N/A
    • 52 Wk. High 5.53
    • 52 Wk. Low 0.85
    • Mkt. Cap 173.74M
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  2. 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 ...

  3. 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.

  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. Laser weapon - Wikipedia

    en.wikipedia.org/wiki/Laser_weapon

    A laser weapon [2] is a type of directed-energy weapon that uses lasers to inflict damage. Whether they will be deployed as practical, high-performance military weapons remains to be seen. [3] [4] One of the major issues with laser weapons is atmospheric thermal blooming, which is still largely unsolved.

  6. Shuji Nakamura - Wikipedia

    en.wikipedia.org/wiki/Shuji_Nakamura

    Shuji Nakamura (中村 修二, Nakamura Shūji, born May 22, 1954) is a Japanese-American electronic engineer and inventor of the blue LED, a major breakthrough in lighting technology. [5] Nakamura specializes in the field of semiconductor technology, and he is a professor of materials science at the College of Engineering of the University of ...

    • Double-slit experiment - Wikipedia
      wikipedia.org
  7. Laser diode - Wikipedia

    en.wikipedia.org/wiki/Laser_diode

    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 connection on the right has been accidentally broken by the case cut process. A laser diode ( LD, also injection ...