Laser Physics and applications PH5814
Description: Characteristics of laser radiation:
Coherence and brightness, Einstein’s coefficients, rate equations, Gain
coefficient, 3, 4- level lasers, Threshold gain, Creation and annihilation
operators.
Course Content: Characteristics of laser radiation: Coherence and
brightness, Einstein’s coefficients, rate equations, Gain coefficient, 3, 4-
level lasers, Threshold gain, Creation and annihilation operators. Modes of
oscillation: transverse and longitudinal, spectral line shapes and line
broadening mechanisms, applications in frequency stabilization Gaussian Beams:
Stability conditions, Rayleigh Range, confocal parameter Typical laser systems:
Gas (He-Ne, He-Cd, Argon, CO2, Excimer), Solid (Ruby, Nd:YAG, Ti:Saphire), Fibe
lasers, semiconductor, free-electron lasers; Uniqueness and their applications.
Q-switching and modelocking: applications in spectroscopy, two-photon
spectroscopy and nonlinear optics, laser frequency comb, optical clock. General
Applications: Laser holography: holographic storage, non-destructive testing,
optical disk storage, Laser metrology: laser gyro, LIDAR and atmospheric
applications, laser trapping and manipulations (tweezers). Lasers in material
science, pulsed laser deposition, plasma generation, micromachining and
bio-applications.
Text Books: Laser fundamentals, W. T. Silfvast, Cambridge University
Press, (1998). Quantum Electronics, A. Yariv, John Wiley (1975). Lasers:
Principle and Applications; J Wilson and J.F.B. Hawkes; Prentice Hall (1987)
Reference Books: Lasers, A. E. Siegman, University Science Books
(1986)Fundamentals of photonics, B. E. A. Saleh, M. C. Teich, John Wiley
(2007).Laser Physics, P. W. Milonni, J. H. Eberly, John Wiley (2010).Few cycle
laser pulse generation and its applications, Franz Kartner (Ed), Springer
(2004).
- Teacher: bisht PREM B BISHT