home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir28
/
photonic.zip
/
F.TXT
< prev
next >
Wrap
Text File
|
1993-09-10
|
1KB
|
24 lines
To create a photonic transistor, two input holograms are needed.
One input hologram is on the left side and the other is on the right.
They project light onto the standard output square so that when the
light at both input squares is on, the combined image relocates
the photons to produce an output image quite different from the image
produced by either one of the input holograms by itself.
The fringe component separating mask, then separates the light
so as to produce the desired outputs, for each of the 4 possible input
states.
As an example of how this works, let's make a hologram for the right
side of the transistor. This one is to project a similar, but not a
duplicate, of the first hologram's image. We will do this by using the
program FIMAGE to flip the wavefront pattern left for right. This
causes the projected image to flip also, when projected from the
right side onto the output square. The many results from image flipping
are greatly simplified in this case because the projected image is a
single point, and therefore a symmetrical image that can be flipped
this way.