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laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light coherently. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light. Temporal coherence can be used to produce pulses of light as short as a femtosecond.
Among their many applications, lasers are used in optical disk drives, laser printers, and barcode scanners; fiber-optic and free-space optical communication; laser surgery and skin treatments; cutting and welding materials; military and law enforcement devices for marking targets and measuring range and speed; and laser lighting displays in entertainment.

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  1. papersoldier

    Steiner SBAL-PL ( Single Bean Laser/Light)

    For sale is my Steiner SBAL-PL single beam light/laser. I originally bought this unit for a specific setup but have since sold the gun and, since I don't really have anything else to wear this beauty, I'm now selling it. The unit is in near perfect condition, was bought new, and was treated...
  2. C

    Springfield Hellcat Viridian Laser

    Selling a like new Viridian Laser for the Springfield Hellcat, used for about 5 minutes $100
  3. H

    Ruger LCR .38 Special +P

    Ruger LCR chambered in .38 Special. Will shoot +P. Comes with Laser Max Laser. Has had exactly one box of 25 rounds fired thru it. Asking $350 or trade for semi-automatic shotgun of equal value. Preferably 12 or 20 Gauge.
  4. T

    Recommendations for a red or green dot laser for Springfield XDS 9 3.3" barrel subcompact?

    Any ideas on those that would hold zero? Thanks!!!!!!!!!!!!
  5. S

    S&w m&p 2.0 with integrated crimson trace laser 9mm

    I’ve got a 9mm s&w m&p 2.0 with a integrated laser. It has about 200 rounds through it I’m asking $400 or looking for A straight across trade( I’m not trying to add money in on my side) It comes with the two mags and a holster.
  6. CountryGent

    Laser Engraver, Side Biz Idea, etc.

    So, I am working on another NFA Form 1 project. One of the steps, of course, is engraving the Trust information on said. I'll likely take it to a local shop as I've done in the past, or send off the part to a firm that specializes in said. That said, out of curiosity I looked into what that...
  7. BenjaminTrif79

    Sig lasermax guide rod

    I have a brand new lasermax guide rod it's only been tested and it works flawlessly it comes with extra batteries. 300 cash.