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Course11510163960 lectures

An Introduction to Lasers and Laser Systems

Prof. Dhruba J. Biswas Prof. J. Padma Nilaya · Homi Bhabha National Institute (HBNI)

Start with lecture 1 At NPTEL

Lectures

week-01

  1. Week 01: Lecture 01: Lasers at a Glance Video
  2. Week 1: Lecture 2: Light Amplifier and the Concept of Cavity Video
  3. Week 1: Lecture 3: Laser: An Integration of a Population Inverted Medium and a Cavity Video
  4. Week 1: Lecture 4: The Invention of Lasers by Maiman Video
  5. Week 1: Lecture 5: Population Inversion vis-à-vis Boltzmann Distribution Video

week-02

  1. Week 2: Lecture 6: Different Methods of Pumping to Effect Population Inversion Video
  2. W2: L7: Population Inversion vis-à-vis No. of Participating Energy Levels in the process of Lasing Video
  3. Week 2: Lecture 8: Behaviour of Light Video
  4. Week 2: Lecture 9: Behaviour of Light (continued) Video
  5. Week 2: Lecture 10: Youngs Doble Slit Experiment and Interference of Light Video

week-03

  1. Week 3: Lecture 11: Interference of Light and Fabrication of Laser Windows and Mirrors Video
  2. Week 3: Lecture 12: Fabrication of Laser Windows and Mirrors (ctd) Video
  3. Week 3: Lecture 13: Diffraction of Light Video
  4. Week 3: Lecture 14: Scattering of Light Video
  5. Week 3: Lecture 15: Light Scattering (ctd) and Polarisation of Light Video

week-04

  1. Week 4: Lecture 16: Polarisation of Light (ctd) and Brewster Angle of Incidence Video
  2. Week 4: Lecture 17: Continuous and Pulsed Operation of Lasers Video
  3. Week 4: Lecture 18: The Maximum Achievable Power from a Pulsed Laser Video
  4. Week 4: Lecture 19: Continuous and Pulsed Pumping of Lasers Video
  5. Week 4: Lecture 20: Continuous and Pulsed Pumping of Lasers (ctd) Video

week-05

  1. Week 5: Lecture 21: Optical Pumping : Coupling of Pump Laser Beam into the Cavity Video
  2. Week 5: Lecture 22: Electrical Pumping Video
  3. Week 5: Lecture 23: Different Kinds of Lasers Video
  4. Week 5: Lecture 24: Atomic Gas Lasers: He-Ne Laser Video
  5. Week 5: Lecture 25: He-Ne Laser (ctd) Video

week-06

  1. Week 6: Lecture 26: Emission Features of He-Ne Laser Video
  2. Week 6: Lecture 27: Ion Lasers: Argon Ion Laser Video
  3. Week 6: Lecture 28: Argon Ion Lasers: Emission Feature Video
  4. Week 6: Lecture 29: Liquid Lasers: Dye Laser Video
  5. Week 6: Lecture 30: Dye Lasers: Working Principle and Emission Features Video

week-07

  1. Week 7: Lecture 31: Solid State Lasers: Nd-YAG Laser Video
  2. Week 7: Lecture 32: Pumping of Nd-YAG Lasers Video
  3. Week 7: Lecture 33: Diode Pumped Solid State Lasers and Continuously Tunable Solid State Lasers Video
  4. Week 7: Lecture 34: Excimer Lasers: Importance Video
  5. Week 7: Lecture 35: Excimer Lasers: Working Principle, Rare Gas Halide Lasers Video

week-08

  1. Week 8: Lecture 36: Introduction to CO2 lasers and molecular spectroscopy Video
  2. Week 8: Lecture 37: Molecular Spectroscopy:Ro-vibrational Transitions Video
  3. W8: L38: Modes of molecular vibration, Vibrational modes and 4 level lasing scheme in a CO2 laser Video
  4. Week 8: Lecture 39: Mechanism of lasing in a CO2 laser Video
  5. Week 8: Lecture 40: Low pressure, CW Operation of a CO2 laser Video

week-09

  1. Week 9: Lecture 41: Limitations of CW - CO2 Lasers and remedy Video
  2. W9: L42: Pulsed Operation of CO2 Lasers; TEA CO2 Lasers and their Temporal Emission Profile Video
  3. Week 9: Lecture 43: TEA CO2 Lasers: Operation, Gain Broadening and Emission Features Video
  4. Week 9: Lecture 44: Gain Broadening and Emission Features (ctd) Video
  5. Week 9: Lecture 45: Discrete and Continuously Tunable Operation of a CO2 laser Video

week-10

  1. Week 10: Lecture 46: Chemical Lasers: Underlying Physics Video
  2. Week 10: Lecture 47: Principle of Operation of HF, DF Chemical Oxygen Iodine Lasers Video
  3. Week 10: Lecture 48: Gas Dynamic Lasers: Principle of Operation Video
  4. Week 10: Lecture 49: Operation of Gas Dynamic CO2 Lasers Video
  5. Week 10: Lecture 50: Fiber Lasers: Its Advantages over Conventional Solid State Lasers Video

week-11

  1. Week 11: Lecture 51: Fiber Laser- continued Video
  2. Week 11: Lecture 52: The Acceptance Angle, Pumping of Fiber Lasers and their Operation Video
  3. Week 11: Lecture 53: Scaling up of Output Power of Fiber Laser and Operation of Fiber Amplifiers Video
  4. Week 11: Lecture 54: Semiconductor Lasers: An Introduction and Basics of Semiconductor Physics Video
  5. Week 11: Lecture 55: Metals, Insulators and Semiconductors, Concept of Holes Video

week-12

  1. Week 12: Lecture 56: Concept of Holes (ctd), Intrinsic and Extrinsic Semiconductors Video
  2. W12: L57: n-type and p-type semiconductors, Semiconductor Diodes, Light Emitting Diodes(LED) Video
  3. Week 12: Lecture 58: Diode Laser from the LED Video
  4. Week 12: Lecture 59: Homojunction and Hetrojunction Diode Lasers Video
  5. Week 12: Lecture 60: Edge Emitting Diode Lasers, Surface Emitting Diode Lasers, Diode Bars & Arrays Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
Homi Bhabha National Institute (HBNI)
Department
Physics
Teacher
Prof. Dhruba J. Biswas Prof. J. Padma Nilaya
Level
Undergraduate
Language
English
Subjects
Physics
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Bombay.
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