computer genereted hologram
On: Thu, Nov 08, 01 08:20:05 AM
jim wrote:
| <![CDATA[Is there anyone knows how to produce multiple spots by
using a hologram.
Is there anyway to use Mathcad to write CGH program?]]> |
RESPONSES
Colin Kaminski - Thu, Nov 08, 01 10:10:40 PM
<![CDATA[If you have a strong math background you can read the 2nd
and 3rd apendicies in Optical Holography by Hariharan. It
is easiest if you understand the Fourier Transform. But it
is posible even with a high school math background.
For anything other than a point or a few points the data
becomes very large so there have been developed methods to
reduce the amount of data involved. Hariharan's chapter 10
gives a great overview of the methods and references to
many of the pertinent research papers.
Your next problem becomes how to get the data out of the
computer and on to a display medium. It is often said
holography is at the place photography was before Edison.
The person who solves this problem will likely take us past
that point.]]> 63.193.192.198
Colin Kaminski - Fri, Nov 09, 01 12:36:27 PM
I had a page book marked that has to do with Math CAD and
holograms. The development is in French but since most of
it is math it is fairly readable. There is a note on the
page saying it is being discontinued so if you want it
check it out soon.
http://sites.netscape.net/hngeorgescu/digital_holography_hor
iaclaude
I have a copy saved if anyone wants it after this link
fails. 63.193.192.198
Colin - Fri, Nov 09, 01 12:38:58 PM
<![CDATA[The above URL has a space in horiaclaude that needs to be
removed.]]> 63.193.192.198
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