laser

CE5

Ordinary light sources produce incoherent light, while a laser produces a beam of coherent light.

laser [acronym for light amplification by stimulated emission of radiation], device for the creation, amplification, and transmission of a narrow, intense beam of coherent light. The laser is sometimes referred to as an optical maser.

Sections in this article:

• Introduction
• Applications of Lasers
• Characteristics of Lasers
• Coherent Light and Its Emission in Lasers
• Bibliography

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