Building Young's Double-Slit Interference Experiment?

Posted by Cliff on Monday November 5, 2001 @09:35AM from the frequency=l-over-gamma dept.

TucsonTed asks: "I am a student teacher, preapring for life as a middle or high school teacher. I'd like to build a working model of Young's Double-Slit experiment to show light's wave behavior. Anyone have info on where I can find some blueprints (size of slits, spacing, etc.?) I don't yet have access to a real lab, so I need the DIY approach. I can use monochromatic light or a laser. If you haven't come across this experiment, and its freakish implications at the quantum level, take a look. You may not sleep tonight." For those interested in the math behind this experiment, you might want to check this site.

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Another double-slit fabrication method by rollie_tyler · 2001-11-05 10:46 · Score: 3, Funny

Here's one we did in high school:

Take a piece of smoked glass or painted glass, about 1" high by 2.5" long. Scratch two slits in it with a pin or razor blade. (The instructions at this point in our assignment said "Then take it to the instructor who will tell you that the slits are too far apart. Go back and try again." You will probably need to follow this advice.) Once you get a good double slit, tape over all your failed tries (there will probably be 10 or 15 of them) with black tape.

On another note, igotmyfirstlogon, the description of the original doubleslit experiment is übercool and would probably work better than this.

rollie