what is the meaning of laser?
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laser Noun. 1. laser-an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light. optical maser. optical device-a device for producing or controlling light.
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Laser treatment What laser treatment is. Doctors can use laser beams to burn away abnormal or cancerous cells. This is called laser ablation and it can: destroy small areas of precancerous cells. shrink or destroy tumours. relieve some cancer symptoms such as bleeding or blockage.
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- HOWIE GLATTER LASER COLLIMATORS. The laser collimator is a tool which enables precise adjustment of the position and alignment of telescope optics, so as to obtain the best possible image contrast and resolution. Inside is a solid-state laser diode, which emits an intense laser beam exactly along the central axis of the cylindrical collimator body.
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laser laser - an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light. optical maser. optical device - a device for producing or controlling light.
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Wikijunior:How Things Work/Laser A normal light bulb will emit many photons of light at various frequencies. As a result, we see the light from the bulb as white. A laser, however, only emits photons with a single frequency. Such light is called monochromatic, a word that means single color.
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Laser Therapy What is Laser Therapy? Laser therapies are medical treatments that use focused light. Laser light is a very special kind of light. Unlike most light sources, it is tuned to very specific wavelengths. This allows it to be focused into powerful beams. Laser light is so intense it can be used to shape diamonds or cut steel. In medicine, lasers offer surgeons the ability to work very precisely.
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beam Definition of beam for English Language Learners. : 1  a line of light coming from a source (such as the sun or a headlight) : 2  a line of energy, particles, etc., that cannot be seen. : 3  a long and heavy piece of wood or metal that is used as a support in a building or ship.
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Laser Tag Laser tag is an interactive game wherein you wear what is typically known as a vest and carry a laser. Depending on the system in which you are playing, the vest and typically … the laser have sensors and flashing lights where in the objective is to tag your opponents flashing sensors without being tagged yourself.
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Wikijunior:How Things Work/Laser A laser is a device that can produce a bright beam of colored light that is focused on a spot. Normally a light bulb glows white because it gives off light in every color we can see.
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- How Lasers Work. The word laser stands for Light Amplification by Stimulated Emission of Radiation. The type of laser we use in our products is an infrared, semiconductor, GaAs laser diode.
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laser In a basic laser, a chamber called a cavity is designed to internally reflect infrared (IR), visible-light, or ultraviolet (UV) waves so they reinforce each other. The cavity can contain gases, liquids, or solids. The choice of cavity material determines the wavelength of the output.asers work as a result of resonant effects. The output of a laser is a coherent electromagnetic field. In a coherent beam of electromagnetic energy, all the waves have the same frequency and phase.
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Laser Disc Decompression for Spinal Stenosis: Does it Work? A laser is a focused beam of light that can be used for cutting soft tissue. In eye surgery, they are definitely useful and have changed corrective eye procedures drastically. In the spine, electrocautery is much more practical for cutting soft tissue.
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- When the first working laser was reported in 1960, it was described as a solution looking for a problem.. But before long the laser's distinctive qualities—its ability to generate an intense, very narrow beam of light of a single wavelength—were being harnessed for science, technology and medicine.hen the first laser appeared, scientists and engineers were not really prepared for it. Many people said to me—partly as a joke but also as a challenge—that the laser was a solution looking for a problem.. But by bringing together optics and electronics, lasers opened up vast new fields of science and technology.
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Laser designator A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively.When a target is marked by a designator, the beam is invisible and does not shine continuously.aser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively. When a target is marked by a designator, the beam is invisible and does not shine continuously.
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laser printer A type of printer that utilizes a laser beam to produce an image on a drum. The light of the laser alters the electrical charge on the drum wherever it hits. The drum is then rolled through a reservoir of toner, which is picked up by the charged portions of the drum. Finally, the toner is transferred to the paper through a combination of heat and pressure.
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Laser hair removal The device to the right provides air cooling. Laser hair removal is the process of removing unwanted hair by means of exposure to pulses of laser light that destroy the hair follicle. It had been performed experimentally for about twenty years before becoming commercially available in the mid-1990s.
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- According to the Loganville public records, the property at 295 Grayson Manor Dr, Loganville, GA 30052 has approximately 2,444 square feet, 4 beds, 2 full and 1 half baths with a lot size of 0.31 acres. Nearby schools include Trip Elementary School, Bay Creek Middle School and Grayson High School.
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What is a Laser? A laser, short for Light Amplification by Stimulated Emission of Radiation, is a very intense, highly directional beam of light.olid State Lasers. Solid-state lasers (SSLs) use a crystalline or glass material doped with an ion, which is the lasing species. These lasers use flashlamps or diodes to pump the ions to excited levels, which then emit radiation. The first laser, a ruby laser, is an SSL.
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How Lasers Work A laser is a device that controls the way that energized atoms release photons. Laser is an acronym for light amplification by stimulated emission of radiation, which describes very succinctly how a laser works.
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Laser lithotripsy Laser lithotripsy. Laser lithotripsy is a surgical procedure to remove stones from urinary tract, i.e., kidney, ureter, bladder, or urethra.
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Laser Therapy Lasers can have a cauterizing, or sealing, effect and may be used to seal: nerve endings to reduce pain after surgery; blood vessels to help prevent blood loss; lymph vessels to reduce swelling and limit the spread of tumor cells; Lasers may be useful in treating the very early stages of some cancers, including: cervical cancer; penile cancer; vaginal cancer
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Laser Hair Removal *Worth It ratings only factor in Worth It and Not worth it ratings. They do not include Not sure.. *Does not include Not sure. Laser hair removal is a treatment that uses lasers to target the roots of hair beneath the surface of the skin. Though it's not guaranteed to be permanent, a majority do experience permanent hair removal after a series of treatments. There’s a variety of lasers on the market, some more effective than others on certain skin tones, hair colors, and treatment areas. Laser hair removal can be performed on any part of the body.
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What is a laser? The wavelength of high energy light emitted by the laser is converted to heat energy and this damages the specific target area. Thus alexandrite lasers work by a process of photothermolysis: this means using light (photo) to heat (thermo) a selected area for destruction (lysis).
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- Laser Hazards. LASER is an acronym which stands for Light Amplification by Stimulated Emission of Radiation. The laser produces an intense, highly directional beam of light.
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How Lasers Work By Andrew Zimmerman Jones. Definition: A laser is a device which is built on the principles of quantum mechanics to create a beam of light where all of the photons are in a coherent state-usually with the same frequency and phase.
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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, spatia