M.Sc. Physics (Electronics), Semester III
Reproduced from the instructor's official session-wise Lecture Plan for the 2026–27 academic session.
| Lect. | Topic | Ref. | Method |
|---|---|---|---|
| 1 | Introduction to laser physics; interaction of radiation with matter: absorption, spontaneous and stimulated emission | T3 | C&T, S/P |
| Unit-1: Properties of Lasers | |||
| 2 | Einstein's theory: derivation of relation between Einstein A and B coefficients | T3 | C&T |
| 1 | Condition for light amplification: population inversion | T3 | C&T |
| 1 | Pumping: mechanisms of producing population inversion | T3, T4 | C&T, S/P |
| 2 | Two-level, three-level and four-level laser systems | T3 | C&T, CHART |
| 1 | Optical gain; main components of a laser | T3 | C&T, S/P |
| 1 | Optical resonator: longitudinal & transverse modes, threshold condition, cavity Q | T3 | C&T |
| 1 | Properties of laser light: coherence, directionality, monochromaticity, brightness; CW & pulsed lasers | T3 | C&T, DEMO |
| 2 | Atomic gas laser: construction and working of the He-Ne laser | T1, T3 | C&T, S/P, DEMO |
| Unit-2: Types of Lasers | |||
| 1 | Ionic gas laser: construction and working of the Argon-ion laser | T1, T3 | C&T, S/P |
| 2 | Molecular gas laser: construction and working of the CO2 laser | T1, T3 | C&T, S/P |
| 1 | Excimer lasers: principle, construction and applications | T1, T3 | C&T, S/P |
| 1 | Liquid (dye) lasers: construction and tunability | T3, T4 | C&T |
| 1 | Solid state lasers: Ruby laser | T1, T3 | C&T, S/P |
| 1 | Solid state lasers: Nd:YAG laser | T1, T3 | C&T, S/P |
| 1 | Semiconductor (diode) laser and fibre laser | T3 | C&T, S/P |
| 1 | Holography: basic principle | T3 | C&T |
| Unit-3: Holography and Fibre Optics | |||
| 2 | Construction (recording) and reconstruction of a hologram | T3 | C&T, S/P, DEMO |
| 1 | Holographic Non-Destructive Testing (HNDT); holographic data storage | T3 | C&T, SEM |
| 2 | Optical fibre principle: total internal reflection; numerical aperture derivation | T2, T3 | C&T |
| 1 | Types of fibres: step-index/graded-index, single-mode/multimode; fibre losses | T2, T3 | C&T, CHART |
| 1 | Fibre optic communication: system block diagram | T2, T3 | C&T, S/P |
| 1 | Fibre amplifiers (EDFA) and fibre-optic sensors | T2, T3 | C&T, JAR |
| 1 | Saturation spectroscopy (Doppler-free spectroscopy) | T3 | C&T |
| Unit-4: Lasers in Science | |||
| 1 | Excited state spectroscopy | T3 | C&T |
| 1 | Nonlinear spectroscopy | T3 | C&T, SEM |
| 1 | Time domain spectroscopy and its applications | T3 | C&T |
| 1 | Stimulated Raman emission | T3 | C&T |
| 1 | Laser fusion | T3 | C&T, ET/GL |
| 1 | Medical applications of lasers | T3 | C&T, SEM |
| 1 | Photo-chemical applications | T3 | C&T, GD |
| 2 | Materials processing: laser drilling and laser cutting | T1, T4 | C&T, S/P |
| Unit-5: Lasers in Industry | |||
| 1 | Laser welding and laser alloying | T1, T4 | C&T, S/P |
| 1 | Thermal deposition; Laser Chemical Vapour Deposition (LCVD) | T1, T4 | C&T |
| 1 | Laser hardening and annealing | T1, T4 | C&T |
| 1 | LIDAR: principle and applications | T1, T4 | C&T, RTCS |
| 1 | Case studies/revision: industrial applications of lasers | T1, T4 | GD, RTCS |
Teaching Methods: C&T: Chalk & Talk; S/P: Slides/PPT/Videos; SEM: Seminar; DEMO: Demonstration; CHART: Chart; ET/GL: Expert Talk/Guest Lecture; QUIZ: Quiz; GD: Group Discussion; RTCS: Real Time Case Studies; JAR: Journal Article Review; PD: Poster Design; LAB: Laboratory demonstration.
Faculty Course Portal · 2026–27