Learn · An Introduction to Lasers and Laser Systems

Lecture 2 of 60week-01

Week 1: Lecture 2: Light Amplifier and the Concept of Cavity

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

Credits and licence

From
An Introduction to Lasers and Laser Systems, Homi Bhabha National Institute (HBNI) (at NPTEL)
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
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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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All the lectures

  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
  6. Week 2: Lecture 6: Different Methods of Pumping to Effect Population Inversion Video
  7. W2: L7: Population Inversion vis-à-vis No. of Participating Energy Levels in the process of Lasing Video
  8. Week 2: Lecture 8: Behaviour of Light Video
  9. Week 2: Lecture 9: Behaviour of Light (continued) Video
  10. Week 2: Lecture 10: Youngs Doble Slit Experiment and Interference of Light Video
  11. Week 3: Lecture 11: Interference of Light and Fabrication of Laser Windows and Mirrors Video
  12. Week 3: Lecture 12: Fabrication of Laser Windows and Mirrors (ctd) Video
  13. Week 3: Lecture 13: Diffraction of Light Video
  14. Week 3: Lecture 14: Scattering of Light Video
  15. Week 3: Lecture 15: Light Scattering (ctd) and Polarisation of Light Video
  16. Week 4: Lecture 16: Polarisation of Light (ctd) and Brewster Angle of Incidence Video
  17. Week 4: Lecture 17: Continuous and Pulsed Operation of Lasers Video
  18. Week 4: Lecture 18: The Maximum Achievable Power from a Pulsed Laser Video
  19. Week 4: Lecture 19: Continuous and Pulsed Pumping of Lasers Video
  20. Week 4: Lecture 20: Continuous and Pulsed Pumping of Lasers (ctd) Video
  21. Week 5: Lecture 21: Optical Pumping : Coupling of Pump Laser Beam into the Cavity Video
  22. Week 5: Lecture 22: Electrical Pumping Video
  23. Week 5: Lecture 23: Different Kinds of Lasers Video
  24. Week 5: Lecture 24: Atomic Gas Lasers: He-Ne Laser Video
  25. Week 5: Lecture 25: He-Ne Laser (ctd) Video
  26. Week 6: Lecture 26: Emission Features of He-Ne Laser Video
  27. Week 6: Lecture 27: Ion Lasers: Argon Ion Laser Video
  28. Week 6: Lecture 28: Argon Ion Lasers: Emission Feature Video
  29. Week 6: Lecture 29: Liquid Lasers: Dye Laser Video
  30. Week 6: Lecture 30: Dye Lasers: Working Principle and Emission Features Video
  31. Week 7: Lecture 31: Solid State Lasers: Nd-YAG Laser Video
  32. Week 7: Lecture 32: Pumping of Nd-YAG Lasers Video
  33. Week 7: Lecture 33: Diode Pumped Solid State Lasers and Continuously Tunable Solid State Lasers Video
  34. Week 7: Lecture 34: Excimer Lasers: Importance Video
  35. Week 7: Lecture 35: Excimer Lasers: Working Principle, Rare Gas Halide Lasers Video
  36. Week 8: Lecture 36: Introduction to CO2 lasers and molecular spectroscopy Video
  37. Week 8: Lecture 37: Molecular Spectroscopy:Ro-vibrational Transitions Video
  38. W8: L38: Modes of molecular vibration, Vibrational modes and 4 level lasing scheme in a CO2 laser Video
  39. Week 8: Lecture 39: Mechanism of lasing in a CO2 laser Video
  40. Week 8: Lecture 40: Low pressure, CW Operation of a CO2 laser Video
  41. Week 9: Lecture 41: Limitations of CW - CO2 Lasers and remedy Video
  42. W9: L42: Pulsed Operation of CO2 Lasers; TEA CO2 Lasers and their Temporal Emission Profile Video
  43. Week 9: Lecture 43: TEA CO2 Lasers: Operation, Gain Broadening and Emission Features Video
  44. Week 9: Lecture 44: Gain Broadening and Emission Features (ctd) Video
  45. Week 9: Lecture 45: Discrete and Continuously Tunable Operation of a CO2 laser Video
  46. Week 10: Lecture 46: Chemical Lasers: Underlying Physics Video
  47. Week 10: Lecture 47: Principle of Operation of HF, DF Chemical Oxygen Iodine Lasers Video
  48. Week 10: Lecture 48: Gas Dynamic Lasers: Principle of Operation Video
  49. Week 10: Lecture 49: Operation of Gas Dynamic CO2 Lasers Video
  50. Week 10: Lecture 50: Fiber Lasers: Its Advantages over Conventional Solid State Lasers Video
  51. Week 11: Lecture 51: Fiber Laser- continued Video
  52. Week 11: Lecture 52: The Acceptance Angle, Pumping of Fiber Lasers and their Operation Video
  53. Week 11: Lecture 53: Scaling up of Output Power of Fiber Laser and Operation of Fiber Amplifiers Video
  54. Week 11: Lecture 54: Semiconductor Lasers: An Introduction and Basics of Semiconductor Physics Video
  55. Week 11: Lecture 55: Metals, Insulators and Semiconductors, Concept of Holes Video
  56. Week 12: Lecture 56: Concept of Holes (ctd), Intrinsic and Extrinsic Semiconductors Video
  57. W12: L57: n-type and p-type semiconductors, Semiconductor Diodes, Light Emitting Diodes(LED) Video
  58. Week 12: Lecture 58: Diode Laser from the LED Video
  59. Week 12: Lecture 59: Homojunction and Hetrojunction Diode Lasers Video
  60. Week 12: Lecture 60: Edge Emitting Diode Lasers, Surface Emitting Diode Lasers, Diode Bars & Arrays Video