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Note for Applied Physics - Phy by ANMOL RAJPUT

  • Applied Physics - Phy
  • Note
  • Computer Science Engineering
  • B.Tech
  • Uploaded 1 year ago
Anmol Rajput
Anmol Rajput
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MODULE-2 Lasers

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Lecture-1 • Introduction • Laser Characteristics

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What is Laser? Light Amplification by Stimulated Emission of Radiation • A device produces a coherent beam of optical radiation by stimulating electronic, ionic, or molecular transitions to higher energy levels • When they return to lower energy levels by stimulated emission, they emit energy.

Lecture Notes