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The term “Laser” means Light Amplification by the Stimulated Emission of Radiation.This device creates a uniform and coherent light (different from an ordinary light bulb). | |
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+http://www.thefreedictionary.com/laser+
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Short for light amplification by stimulated emission of radiation. A device that creates and amplifies electromagnetic radiation of a specific frequency through the process of stimulated emission. The radiation emitted by a laser consists of a coherent beam of photons, all in phase and having the same polarization. Lasers have many uses, such as cutting hard or delicate substances, reading data from compact disks and other storage devices, and establishing straight lines in geographical surveying.
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