Video Index
Please make sure you play the Video before clicking the links below.
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Multi-Slit Interference
Interference pattern for a red laser and a white light shining through a fine grating.
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Multi-Slit Interference with a Lens
Using a lens to see an interference pattern at a much closer distance. Demonstration uses the lens of the eye and an individual grating to view the pattern for a white light and a neon light.
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Diffraction Pattern
Showing that for a narrower slit the diffraction pattern becomes wider using a variable width slit and a green laser.
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Angular Resolution of the Human Eye
Testing the eye's angular resolution by looking at a series of pairs of pinholes with different separations to see which ones appear as two distinct light sources.