Video Demonstrations in Lasers and Optics

Video Lectures

Displaying all 49 video lectures.
I. Introduction
Lecture 1
Overview of Lasers and Optics
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Overview of Lasers and Optics
II. Polarization of Light and Polarization Manipulation
Lecture 2
Image Not Available
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Linear polarizer
Lecture 3
Polarization rotation using polarizers
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Polarization rotation using polarizers
Lecture 4
Quarter-wave plate
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Quarter-wave plate
Lecture 5
Half-wave plate
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Half-wave plate

Topics covered:

  • Description of a half-wave plate
  • Use of a half-wave plate to rotate the plane of polarization from zero to ninety degrees with very little loss
  • Demonstration that there is no change in the state of polarization when propagating along either principal axis of the half-wave plate
Lecture 6
Optical isolator
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Optical isolator
Lecture 7
Scattered light in a dielectric
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Scattered light in a dielectric
III. Reflection at Dielectric Interfaces
Lecture 8
Reflection at the air-glass boundary
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Reflection at the air-glass boundary
Lecture 9
Reflection at the glass-air boundary
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Reflection at the glass-air boundary
Lecture 10
Phase shifts in total internal reflection
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Phase shifts in total internal reflection
IV. Two-beam Interference
Lecture 11
Two-beam interference — collimated beams
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Two-beam interference — collimated beams
Lecture 12
Two-beam Interference: Diverging Beams
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Two-beam Interference: Diverging Beams
Lecture 13
Destructive Interference: Where does the light go?
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Destructive Interference: Where does the light go?
Lecture 14
Fringe Contrast: Vibrations
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Fringe Contrast: Vibrations
Lecture 15
Fringe Contrast: Intensity Ratio
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Fringe Contrast: Intensity Ratio
Lecture 16
Fringe Contrast: Polarization Difference
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Fringe Contrast: Polarization Difference
Lecture 17
Fringe Contrast: Path Difference
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Fringe Contrast: Path Difference
Lecture 18
Coherence Length and Source Spectrum
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Coherence Length and Source Spectrum
V. Multiple Beam Interference
Lecture 19
Plane Mirror Cavity: Collimated Beams
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Plane Mirror Cavity: Collimated Beams
Lecture 20
Plane Mirror Cavity: Diverging Beams
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Plane Mirror Cavity: Diverging Beams
Lecture 21
Curved Mirror Cavity: Radial Modes
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Curved Mirror Cavity: Radial Modes
Lecture 22
Optical Spectrum Analyzer
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Optical Spectrum Analyzer
Video includes a demonstration of the use of a confocal cavity for the spectral analysis of single-frequency laser and multifrequency laser.
VI. Fraunhofer and Fresnel Diffraction
Lecture 23
Fraunhofer Diffraction: Adjustable Slit
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Fraunhofer Diffraction: Adjustable Slit
Lecture 24
Fraunhofer Diffraction: Two Slits
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Fraunhofer Diffraction: Two Slits
Lecture 25
Fraunhofer Diffraction: Multiple Slits
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Fraunhofer Diffraction: Multiple Slits
Lecture 26
Optics: Fraunhofer diffraction - thin wires
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Optics: Fraunhofer diffraction - thin wires
Lecture 27
Optics: Fraunhofer diffraction - rectangular aperture
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Optics: Fraunhofer diffraction - rectangular aperture
Lecture 28
Optics: Fraunhofer diffraction - circular apertures
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Optics: Fraunhofer diffraction - circular apertures
Lecture 29
Optics: Fraunhofer diffraction - crossed multiple slits
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Optics: Fraunhofer diffraction - crossed multiple slits
Lecture 30
Optics: Fresnel diffraction - adjustable slit
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Optics: Fresnel diffraction - adjustable slit
Lecture 31
Optics: Fresnel diffraction - circular apertures
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Optics: Fresnel diffraction - circular apertures
Lecture 32
Optics: Single mode fiber
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Optics: Single mode fiber
Lecture 33
Optics: Multi-mode fiber
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Optics: Multi-mode fiber
Lecture 34
Optics: Polarization in a single mode fiber
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Optics: Polarization in a single mode fiber
Lecture 35
Laser fundamentals I: Simple laser
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Laser fundamentals I: Simple laser
Lecture 36
Laser fundamentals I: Light amplifier
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Laser fundamentals I: Light amplifier
Lecture 37
Laser fundamentals I: Polarization of laser light
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Laser fundamentals I: Polarization of laser light
Lecture 38
Laser fundamentals I: Spectrum of laser light
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Laser fundamentals I: Spectrum of laser light
Lecture 39
Laser fundamentals I: Light inside and light outside laser
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Laser fundamentals I: Light inside and light outside laser
Lecture 40
Laser fundamentals II: Optics of laser beams
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Laser fundamentals II: Optics of laser beams
Lecture 41
Laser fundamentals II: Laser transverse modes
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Laser fundamentals II: Laser transverse modes
Lecture 42
Laser fundamentals II: Laser linewidth
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Laser fundamentals II: Laser linewidth
Lecture 43
Laser fundamentals III: Reflection back into laser
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Laser fundamentals III: Reflection back into laser
Lecture 44
Laser fundamentals III: High power argon laser
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Laser fundamentals III: High power argon laser
Lecture 45
Laser fundamentals III: Multi-wavelength argon laser
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Laser fundamentals III: Multi-wavelength argon laser
Lecture 46
Laser fundamentals III: Single-frequency argon laser
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Laser fundamentals III: Single-frequency argon laser
Lecture 47
Laser fundamentals III: Tunable dye laser
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Laser fundamentals III: Tunable dye laser
Lecture 48
Laser fundamentals III: Dye laser excitation of sodium
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Laser fundamentals III: Dye laser excitation of sodium
Lecture 49
Laser fundamentals III: Dye laser induced fluorescence in iodine
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Laser fundamentals III: Dye laser induced fluorescence in iodine