Question

Define the terms MASER and LASER.

   Define the terms MASER and LASER.

Engineering Physics

Engineering Physics

Jyotsna Sharma,… 1st Edition

Chapter 14, Problem 1

Instant Answer

Solved by Expert Ajay Singhal

08/01/2021

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The term LASER stands for "Light Amplification by Stimulated Emission of Radiation". Show more…

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Define the terms MASER and LASER.

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Key Concepts

MASER

A MASER is a device that amplifies electromagnetic radiation in the microwave region through the process of stimulated emission. It operates on quantum mechanical principles, where an external energy source produces a population inversion in the active medium, leading to the emission of coherent microwave radiation. This technology is used in applications requiring precise spectral resolution and low-noise signal amplification.

LASER

A LASER is a device that generates coherent light through the process of stimulated emission of radiation. By creating a population inversion in an active medium and using an optical cavity to enhance the emission, the laser produces a highly collimated and monochromatic beam of light. This principle underpins a wide range of applications in areas such as telecommunications, medicine, manufacturing, and scientific research.

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