The holo-gods are smiling down on our little planet today as we are now blessed with a blue laser the easly makes holograms 8 inches deep ( and soon to be more)!
:dance:
The light that illuminates the inside pyramid is the second shot and this light is bounced back off the mirror on the right side, meaning this laser is putting out 8 or more inches of coherent length!
This is a simple one beam transmission shot using fuji film with a 10 second exposuer. sorry for the poor photo as i took the picture while the emulsion was still wet , as i was kinda pissing in my pants to show you all!...............
Firsts Casio diode hologram @ 445nm
Firsts Casio diode hologram @ 445nm
- Attachments
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- second casio hologram by D A Battin
- CIMG7000.JPG (202.36 KiB) Viewed 10821 times
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- set up for one beam casio hologram july27 2010
- CIMG7003.JPG (217.64 KiB) Viewed 10821 times
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- first casio diode hologram by D A Battin
- CIMG7002.JPG (226.22 KiB) Viewed 10815 times
Last edited by dave battin on Wed Jul 28, 2010 5:17 am, edited 5 times in total.
Firsts Casio diode hologram @ 445nm
Nice! Can you show the laser? How was it set up?
Firsts Casio diode hologram @ 445nm
Congratulations! In the second picture the transmission holo was being lit by the Casio laser?
Firsts Casio diode hologram @ 445nm
yes correct TomTom B. wrote:Congratulations! In the second picture the transmission holo was being lit by the Casio laser?
Firsts Casio diode hologram @ 445nm
i have just shot a 15 second exposure to reconfirm this laser's ability to make a hologram, and as it turns out, it's not a dream at all!( i was up till 3AM testing last night), this time the pyramid was placed even deeper in the scene. The coherent length of these diodes appears to be quite long, but i don’t want to get into that now, I’m just glad it makes a hologram!
Firsts Casio diode hologram @ 445nm
Maybe this warrants a trip to Stonehenge?dave battin wrote:The holo-gods are smiling down on our little planet today
Nice job, Mr. Dave, thanks for running these tests. Looks like quite a few people are hard at work with these diodes for holography, in free-running mode and ECDL. Things are looking promising.
Firsts Casio diode hologram @ 445nm
Congrats Dave. This is the first hologram i saw made with these LDs. Now it is a fact that they can be used for recording and not just a hope anymore.
Ahmet
Ahmet
Firsts Casio diode hologram @ 445nm
Nice work! I can't wait to see how these little diodes fare at DCG.
Firsts Casio diode hologram @ 445nm
Great work Dave.
Do you plan to try it on DCG??
T
Do you plan to try it on DCG??
T
Firsts Casio diode hologram @ 445nm
Fifteen seconds is going to be plenty of time to get some decent-sized DCG holograms at 445nm. But, I agree, it would be nice to see a simple Denisyuk DCG hologram. At that wavelength, really small quantities of ammonium dichromate are adequate, and in fact preferable. All that's needed is Knox gelatin from the grocery store and a little dichromate :dance: