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Chemistry LibreTexts

Introduction to Lasers

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Learning Objectives

The basic theory of lasers will be presented with emphasis on:

  • laser radiation properties
  • laser components and design
  • laser light generation
  • common laser types

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. Lasers are ubiquitous in our lives and are broadly applied in areas that include scientific research, medicine, engineering, telecommunications, industry and business (see the Applications page for examples). This module is aimed at presenting the most basic principles of lasers and discussing aspects of common types. Properties of laser radiation and laser optical components are introduced.

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This page titled Introduction to Lasers is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Carol Korzeniewski via source content that was edited to the style and standards of the LibreTexts platform.

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