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deep hologram Denisyuk-How was it done?
Posted: Fri May 21, 2010 11:53 am
by dave battin
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!
deep hologram Denisyuk-How was it done?
Posted: Fri May 21, 2010 2:51 pm
by Danny Bee
If you use this Technique please call it (CAB " Contact Attenuated Bypass ") Its my contribution to the world of holography
deep hologram Denisyuk-How was it done?
Posted: Sun May 23, 2010 9:27 pm
by Jeffrey
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?
deep hologram Denisyuk-How was it done?
Posted: Mon May 24, 2010 2:37 pm
by Danny Bee
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:
deep hologram Denisyuk-How was it done?
Posted: Sat Jun 19, 2010 8:37 pm
by Colin Kaminski
I have seen a diagram like Salvee's in Edition 3 of Practical Holography. Nice hologram Danny!
deep hologram Denisyuk-How was it done?
Posted: Sat Jun 19, 2010 10:27 pm
by Danny Bee
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
, finally got something good to write a paper on :wall:
deep hologram Denisyuk-How was it done?
Posted: Sat Jun 19, 2010 11:51 pm
by Colin Kaminski
The diagram I was remembering is on page 126 of Saxby's Third Edition but it is for singlebeam H1 to H2 transfers.
deep hologram Denisyuk-How was it done?
Posted: Sun Jun 20, 2010 1:34 am
by Danny Bee
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
deep hologram Denisyuk-How was it done?
Posted: Sun Jun 20, 2010 6:46 pm
by BobH
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.
deep hologram Denisyuk-How was it done?
Posted: Sun Jun 20, 2010 9:21 pm
by Danny Bee
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
