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Shareware Overload Trio 2
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Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
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photonic.zip
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I.TXT
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1993-09-10
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Now, we have previously created a hologram for the left side. Let's
make one for the right side.
If we simply produce a hologram directly from the flipped wavefront,
putting them together would simply make a "zone plate" "magnifying
glass" (composite hologram.) All of the input light would simply be
focused onto that point.
In order to make a photonic transistor, we must be able to cause
the photons of the two images projected from each of the holograms
to react so as to produce an entirely different image when both are
on, as opposed to when only one side is on. (Since the moot case of
having both input beams off always produces an off output.)
There are many ways to cause the individual images to interact
with each other. (That's why the actual development package has so
many programs for working with these images.) For this simple
demonstration, we can produce a hologram that causes its light at
same spot to be 180 degrees out of phase. Then, when both input beams
are on at the same instant, destructive interference will occur at the
place where the two beams combine, rather than the constructive
interference that occurs when only one hologram is lit.