What is a Laser?
A laser is an optical device that emits coherent light (electromagnetic radiation). The term 'laser' is an acronym for Light Amplification by Stimulated Emission of Radiation.
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Typically, lasers are thought of as emitting light in a narrow, low-divergence beam, with a narrow wavelength spectrum ('monochromatic' light). Lasers need not have either
Friday, 29 October 2010
LASER - Meaning, Uses and Applications of Laser Technology
Posted on 07:34 by Unknown
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