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This module discusses basic concepts related to Lasers. Lasers are light sources that produce electromagnetic radiation through the process of stimulated emission. Laser light has properties different from more common light sources, such as incandescent bulbs and fluorescent lamps. Typically, laser radiation spans a small range of wavelengths and is emitted in a beam that is spatially narrow. The word laser is an acronym for Light Amplification by Stimulated Emission of Radiation.

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Developed by:
Dr. Carol Korzeniewski
Texas Tech University
Carol.Korzeniewski@ttu.edu