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DIY Spectral Photometer

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marcbarker

New Member
Has anyone ever considered using a Compact Disk as a cheap diffraction grating for Spectral Photometery/Radiometry?

(Please, no wisecracks like: "It'd only work with the CD of Pink Floyd
Dark Side of Moon album"!!) :)

Applications: Molecular Absorption Photometry (i.e. Gas Detection), Colorimetery, testing spectral power distribution of light sources.

It's where a product would be too expensive with a conventional diffraction grating, or narrowband optical filter.
 

marcbarker

New Member
Yes! Thanks!

I like the way they use a pair of razor blades together as a precision slit.
 

KMoffett

Well-Known Member
Google: CD compact disk spectrometer

There's a bunch out there.

ken
 
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