Dr. Ashwini Kumar Sharma Professor Department of Physics Indian Institute of Technology Guwahati Guwahati - 781 039, Assam, INDIA e-mail:    aksharma@iitg.ac.in Phone:  +91-361-258-2724 (Off.), 4724 (Res.) Fax:        +91-361-2582749 / 2690762

PH306: Lasers & Ultrafast Optics, Jan-May, 2023

Welcome to the course PH306. This web page is intended to provide all the necessary information on the course.

Course coordinator

Ashwini Kumar Sharma
Room No. 107
Department of Physics,
Email: aksharma@iitg.ac.in
Tel: 2724

• Course details
• Class Schedule
• Exam Schedule
• Assignments

Course details

Laser Physics: The Einstein coefficients, light amplification, the threshold condition, laser rate equations, line broadening mechanisms, cavity modes, optical resonator, quality factor,mode selection, Introduction to gas lasers, solid state lasers, and semiconductor lasers.

Ultrafast optics: Introduction to ultrashort pulses (nano-, pico-, femto-, attosecond pulses): generation and propagation; principles of mode locking; pulse compression; laser amplifiers;interferometric autocorrelation; ultrafast measurement techniques: time resolvedmeasurement, electro-optic sampling.

Applications: Nonlinear optical susceptibilities, second harmonic generation, self-focusing;,Step index and graded index optical fibers, attenuation and dispersion, brief introduction tofiber optic communications; Optical solitons, working principle: terahertz spectroscopy, laserablation, multiphoton absorption.

Texts:

Text books :

1. W. T. Silfvast, Laser Fundamentals, 2nd Ed., Cambridge University Press, 2004.
2. B.E.A. Saleh and M.C.Teich, Fundamentals of Photonics, 2nd Ed., Wiley, 2007.
3. Ultrafast Optics - Andrew Weiner (John Wiley & Sons).
4. Ultrashort Laser Pulse Phenomena - J.-C. Diels and W. Rudolph (Academic Press).
5. O. Svelto and D. C. Hanna, Principles of Lasers, Springer, 1998.
6. R.W. Boyd, Nonlinear Optics, 3rd Ed., Academic Press, 2007.
7. A. Ghatak and K. Thyagarajan, Optical Electronics, Cambridge University Press, 2009.

Class Schedule

Please visit https://www.iitg.ac.in/phy/pdfdocs/TT-PHY-Jan-May_2023_V4.pdf for the class time table.

Lectures:

Room No.: 5204

Monday: 15:00 - 15:55 hrs
Thursday: 14:00 - 14:55 hrs
Friday: 14:00 - 14:55 hrs

Student timings: Through appointment (by email)

Exam Schedule

Please visit the academic section for the exam time table

Term paper: 10%. Submission of term paper report on or before 27.04.2023

Assignments