Laser science is the study of lasers (Light Amplification by Stimulated Emission of Radiation) and their applications. A laser is a device that produces a coherent beam of light through the process of stimulated emission, where excited atoms or molecules release photons in a uniform direction. This results in light that is monochromatic (a single wavelength), coherent (light waves are in phase), and directional (focused in a narrow beam).
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