Laser Physics (435 Phys.)

This course deals with: 
* Absorption and emission of light, Einstein Relations, Population inversion, Gain coefficient, Optical cavity, Modes of laser cavity. Solid-state lasers, Semiconductor lasers, Gas Lasers, Dye lasers, Free electron laser and some new lasers. 
* Laser beam properties: Laser Line width, Beam Divergence,
Coherence, Brightness, Focusing properties of laser, Q-Switching, Frequency Doubling, Phase Conjugation. 
* Laser Applications: Medical application, Industrial application, Military application, Scientific application, Holography and communications.