brainwagon "There is much pleasure in useless knowledge." — Bertrand Russell

29Apr/060

Digital Inline Holography with a Laser Pointer

I hadn't heard of inline holography before, but apparently it was proposed decades ago by a short article in Nature by Gabor. Basically it is a technique by which interference patterns between an object and a reference wavefront is recorded, and then reconstructed in using clever math and the FFT.  Very neat.  Laser Pointer Holography

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