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Introduction to Lasers and Their Applications
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Introduction to Lasers and Their Applications
SURA WUTTIPROM
MAHIDOL UNIVERSITY,THAILAND
The LASER, an abbreviation for Light Amplification by Stimulated Emission of Radiation, is a device that creates and amplifies a narrow and intense beam of coherent light. Now it is four decades old, it has contributed to humanity as a powerful scientific tool for expanding human knowledge and in its many applications that help people directly. ...
Basic laser principles
In order to operate most lasers, three basic conditions must be satisfied. ... Finally, taking place in true lasers oscillation, there must be some forms of optical feedback or optical resonator, which consists of mirrors that reflect the light back and forth radiation emitted along the axis is reflected, causing many additional stimulated emission, while radiation directed off the axis is quickly lost from the system. ...
Types of laser
Lasers come in many shapes and sizes. ... Brightness: The brightness of lasers arises from two factors. ... for example, 1 mmW of He-Ne laser is brighter than the sun 1015 times
Applications of laser
Nowadays, lasers are also used in a wide range of applications in medicine, manufacture, the constructing industry, surveying, scientific instrument, entertainment, communication, research, holography, optical storage, and military system.
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Paper Information
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Title: Introduction to Lasers and Their Applications
Words: 1306 Rating: None Pages: 5.2 submitted by: actiongang
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