Poisson Spot
From UO Physics Demonstration Catalog
Revision as of 11:15, 25 April 2022 by Physdemo (talk | contribs) (Created page with "{{NewDemo|subject=Light and Optics|topic=Diffraction and Interference|file1=Poisson Spot.gif}} A laser beam with a beam expander attatchment is aimed at the ball bearing which is held by the lens apparatus. The interference pattern, which is now large enough to see clearly, is projected onto a screen or wall. The bright spot at the center of the pattern, Poisson's spot, is the result of light waves being bent around the ball bearing. '''Location: ''' * Laser: Shelf M-2...")
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Description:
A laser beam with a beam expander attatchment is aimed at the ball bearing which is held by the lens apparatus. The interference pattern, which is now large enough to see clearly, is projected onto a screen or wall. The bright spot at the center of the pattern, Poisson's spot, is the result of light waves being bent around the ball bearing.
Location:
- Laser: Shelf M-2
- Laser Attatchments: Shelf M-4
- Lens/Ball Bearing Holder: Shelf M-3
- Ball Bearings: Shelf M-3
