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Wave Optics

By Prof. Samudra Roy   |   IIT Kharagpur
Learners enrolled: 630   |  Exam registration: 29
ABOUT THE COURSE:
The course offers a profound understanding of the wave nature of light. This self-contained course begins with useful preliminaries related to the wave propagation and electromagnetic theory of light. Then the fundamental concept of various phenomenon like diffraction, interference and polarization will be developed gradually from scratch with detailed mathematical derivation. The course will be useful for UG students studying Physics.

INTENDED AUDIENCE: B.Sc, B.Tech, B.Ed.

PREREQUISITES:
1. Basic Electrodynamics
2. Elementary Mathematics
Summary
Course Status : Completed
Course Type : Core
Language for course content : English
Duration : 12 weeks
Category :
  • Physics
Credit Points : 3
Level : Undergraduate
Start Date : 22 Jul 2024
End Date : 11 Oct 2024
Enrollment Ends : 05 Aug 2024
Exam Registration Ends : 16 Aug 2024
Exam Date : 03 Nov 2024 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.


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Course layout

Week 1:  Basics concepts: Wave propagation, Wave equation and its solution, Maxwell’s wave equation, Plane wave solution, Spherical and cylindrical waves-a full mathematical descriptions.

Week 2: Superposition of waves, Standing and propagation waves, Superposition of waves with different frequency: Beat formation, Concept of wave-packet, group and phase velocity

Week 3: Material Dispersion, Group delay, Concept of coherence: Temporal and Spatial, Light interference, outline of double slit experiment, Amplitude splitting interference

Week 4: Multiple beam interference, Michelson interferometer, Febry-Perot interferometer, Newtons Rings

Week 5: Diffraction of light, The Huygens-Fresnel Principle, Kirchhoff’s diffraction theory, Fraunhofer and Fresnel type diffraction

Week 6: Diffraction calculations: Single slit, Double slits, multiple slits, Rectangular aperture

Week 7: Diffraction from circular aperture, Airy disc, Resolving power of different instruments.

Week 8: Fresnel Diffraction: Fresnel half period zones, Circular aperture and Vibration spiral, Straight slit, Fresnel’s integrals and Cornu spiral. Fresnel diffraction at a straight edge.

Week 9: Concept of polarization: Linear, circular and elecptic polarization, Polarisation by reflection and refraction, Polarisation of scattered light.

Week 10: Malus’s Law, Dichroic polarisers. Birefringence, Uniaxial and Biaxial crystals, O-ray and E-ray

Week 11: Velocity ellipsoids, Nicol prism, Babinet’s Compensator, Optical activity.

Week 12: Mathematical Description of polarization: The Stokes parameter, Jones matrix formalism and problems. Practical applications of the wave optics

Books and references

1. Optics by E. Heach
2. Fundamentals of Optics: F. A. Jenkins and H. E. White
3. Optics by A. Ghatak

Instructor bio

Prof. Samudra Roy

IIT Kharagpur
Prof. Samudra Roy completed his PhD from CGCRI-Kolkata (a CSIR Lab) in 2009 and carried out his post-doctoral research in Hokkaido University, Japan and Max Planck Institute for the Science of Light, Germany during 2009- 2013. He joined in the Physics Department, IIT-Kharagpur as an assistant professor in 2013 and currently hold the position of associate professor. The research field of Prof. Roy includes nonlinear photonics and light-matter interactions.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 
03 November 2024 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team


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