deep hologram Denisyuk-How was it done?

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dave battin

deep hologram Denisyuk-How was it done?

Post by dave battin » Fri May 21, 2010 11:53 am

you almost have it , just index the attenuator directly to the film or have the attenuator mounted on glass and then simply index your film to it! another option could be to use a polarising sheet as the films crarrier then adjust polarisation to change ratios ! this should work nicely to do transmission holograms as well !
nice job Danny, i can tell you had your thinking cap on for this one! :lol:

Danny Bee

deep hologram Denisyuk-How was it done?

Post by Danny Bee » Fri May 21, 2010 2:51 pm

If you use this Technique please call it (CAB " Contact Attenuated Bypass ") Its my contribution to the world of holography :angel:

Jeffrey

deep hologram Denisyuk-How was it done?

Post by Jeffrey » Sun May 23, 2010 9:27 pm

Very cool, Danny. Ratio control in a Denisyuk configuration!
I have wondered what a polarizer might do on the object side of the emulsion, by screening out rotated polarizations, but I never got to that experiment...
Excellent development! It should go in a book... anyone writing anymore?

Danny Bee

deep hologram Denisyuk-How was it done?

Post by Danny Bee » Mon May 24, 2010 2:37 pm

Jeffrey wrote:Very cool, Danny. Ratio control in a Denisyuk configuration!
I have wondered what a polarizer might do on the object side of the emulsion, by screening out rotated polarizations, but I never got to that experiment...
Excellent development! It should go in a book... anyone writing anymore?
Attenuating with a polarizer works very well, this might lead to the development of a Holo-Obsura for schools and colleges and is being presently work on :dance:

Colin Kaminski

deep hologram Denisyuk-How was it done?

Post by Colin Kaminski » Sat Jun 19, 2010 8:37 pm

I have seen a diagram like Salvee's in Edition 3 of Practical Holography. Nice hologram Danny!

Danny Bee

deep hologram Denisyuk-How was it done?

Post by Danny Bee » Sat Jun 19, 2010 10:27 pm

Jeffrey wrote:Very cool, Danny. Ratio control in a Denisyuk configuration!
I have wondered what a polarizer might do on the object side of the emulsion, by screening out rotated polarizations, but I never got to that experiment...
Excellent development! It should go in a book... anyone writing anymore?
Dave and I are writing a paper on this for SPIE :D , finally got something good to write a paper on :wall:

Colin Kaminski

deep hologram Denisyuk-How was it done?

Post by Colin Kaminski » Sat Jun 19, 2010 11:51 pm

The diagram I was remembering is on page 126 of Saxby's Third Edition but it is for singlebeam H1 to H2 transfers.

Danny Bee

deep hologram Denisyuk-How was it done?

Post by Danny Bee » Sun Jun 20, 2010 1:34 am

Colin Kaminski wrote:The diagram I was remembering is on page 126 of Saxby's Third Edition but it is for singlebeam H1 to H2 transfers.
thanks colins yes the only thing that has not been tried which make this a good paper, one is that the controlling method is in contact with the plate and we worked out setup using a polarizer filter and a 1/2 wave plate in the setup.....for both h1 and and using that hologram in the same setup to make a h2 refection.

we hope to have this ready for next years SPIE at San Jose

BobH

deep hologram Denisyuk-How was it done?

Post by BobH » Sun Jun 20, 2010 6:46 pm

I have to say I see this same technique in Saxby's Second Edition on page 127, under "Reflection Master Holograms", and he references Hans Bjelkhagen from 1977 and Nils Abramson. :?

Danny Bee

deep hologram Denisyuk-How was it done?

Post by Danny Bee » Sun Jun 20, 2010 9:21 pm

BobH wrote:I have to say I see this same technique in Saxby's Second Edition on page 127, under "Reflection Master Holograms", and he references Hans Bjelkhagen from 1977 and Nils Abramson. :?
No Bob its not totally the same, I ask Dinesh if this would make a good paper and if our application has been tried before... he said it would make a good paper .... , some have thought about it but never written on it, are's is taking the same concept but taking it beyond that point, and doing the testing with a p-filter in contact with the plate. it will benefit the holo community greatly

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