Neutron Holography 1 (VIDEO)

National Institute of Standards and Technology (NIST)

Caption

Though they aren't holograms themselves, these animations demonstrate data that proved that neutron beams -- rather than the usual laser light -- can be used to create holograms of solid objects, in this case a tiny aluminum plate with a spiral carved into one of its faces. The first animation illustrates what happens as you slowly move back from the plate, which dominates as the bright circle in the center. Near the end, fainter circles appear at top and bottom (created by interference patterns in the neutron beams) that usefully show the outlines of the plate's spiral surface.

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NIST

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