Course Details
Subject {L-T-P / C} : PH6234 : Laser Physics { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Sidhartha S. Jena
Syllabus
Brief history of LASER, wave nature of light, wave-particle duality, Electromagnetic radiation, interaction of light with matter, Black body radiation, General Physical principles behind amplification: Spontaneous emission. Stimulated absorption, Stimulated emission, Einstein coefficient and amplification, Line broadening, Ideas about line-width, Laser rate equations: The three level system, The four level system, Semi classical theory of LASER, active medium, population inversion, pumping mechanism, Role of feedback mechanism, Optical resonator, Modes of a rectangular cavity, Transverse and Longitudinal modes, The quality factor, Q- switching, Mode locking. CW operation, Pulsed operation. Properties of LASER: Coherence, Directionality and Monochromaticity, Different types of LASERS: Gas LASER, Solid state LASER, Liquid state LASER, Excimer LASER, Fiber optic LASER
Course Objectives
- Understanding the basic principles of LASER and its operation.
- Understanding various kinds of LASRERS and its working principles.
- LASER and its applications
Course Outcomes
At the end of the course, student should get clearer picture of basics, fundamentals and applications of LASER both in academia and Industry.
Essential Reading
- William T. Silfvast, LASER Fundamentals, Cambridge University Press, 2nd Edition , 2004
- Anthony E. Siegman, LASERS, University Science Books , 1986
Supplementary Reading
- A. K. Ghatak and K. Thyagarajan, LASERS: Theory and applications, Macmillan Publishers India , 200
- K. R. Nambiar, LASERS: Principles, Types and Applications, New Age Instruments , 2004