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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A simple solution by Mik!tAAt · 2001-11-05 09:43 · Score: 3, Insightful

Of course you could try to get some _very_ fine grid, but my physics teacher used just laser and one human hair, and got exactly the desired results (he also had some grids to proof the experiment, tho). This is because IIRC, in a double-slit, only the gap in the between matters (at least when using a laser), so any thin enough object will do.

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