First color -ok im hooked on color now

Danny Bee · Post by **Danny Bee** » Thu Oct 09, 2008 3:55 pm

its a bit dim because it was over exposed, so it was very hard to photograph.

DJ Mathson · Post by **DJ Mathson** » Thu Oct 09, 2008 8:56 pm

Interesting. Danny, would you mind sharing some more information on how the hologram was made? What lasers and what emulsion for example?

Danny Bee · Post by **Danny Bee** » Thu Oct 09, 2008 11:29 pm

DJ Mathson wrote:Interesting. Danny, would you mind sharing some more information on how the hologram was made? What lasers and what emulsion for example?

here a better image

lasers 532nm dpss, 457nm dpss, diode 635nm
film 8E75 Holotest with rodamine b dye add
develop in d19 bleached in Ferric Brilland Bleach
then soaked in Potassium permagnate
washed then air dried

Danny Bee · Post by **Danny Bee** » Thu Oct 09, 2008 11:47 pm

this is what the object looks like

not bad for first try

DJ Mathson · Post by **DJ Mathson** » Fri Oct 10, 2008 10:08 am

Nice.
How are you combining the beams?
What kind of 635 nm diode are you using? I am about to build a TE controlled laser and am looking for a shorter wavelength than 660 nm.

Is the Rhodamine B used as a sensitizer for green?
According to this abstract it is possible to make a full color hologram on the 8E75 film without preparation:
http://spiedl.aip.org/getabs/servlet/Ge ... s&gifs=yes

Danny Bee · Post by **Danny Bee** » Fri Oct 10, 2008 2:14 pm

DJ Mathson wrote:Nice.
How are you combining the beams?
What kind of 635 nm diode are you using? I am about to build a TE controlled laser and am looking for a shorter wavelength than 660 nm.

Is the Rhodamine B used as a sensitizer for green?
According to this abstract it is possible to make a full color hologram on the 8E75 film without preparation:
http://spiedl.aip.org/getabs/servlet/Ge ... s&gifs=yes

yes both Kodak SO‑173 and 8E75 Holotest has some senitivity to green but very low
I have added Rhodamine B to both films
http://www.letstalkholography.com/paper/
the first time I trying I got a color image but very hard to see do to the blue scatter noise, this is where Potassium permagnate helped alot ,allowing the other colors to show up.. the photo dosnt show all the color as it does when you view it in person....its week but its a start

Danny Bee · Post by **Danny Bee** » Fri Oct 10, 2008 2:37 pm

DJ Mathson wrote:Nice.
How are you combining the beams?
What kind of 635 nm diode are you using? I am about to build a TE controlled laser and am looking for a shorter wavelength than 660 nm.

my red is a module PPM25/5838 630nm 25mw it has a built in controller and TE
to combin my beams im using a prism found in a 3ccd video camera for RGB

Colin Kaminski · Post by **Colin Kaminski** » Fri Oct 10, 2008 3:29 pm

Danny Bee wrote:
DJ Mathson wrote:Nice.
How are you combining the beams?
What kind of 635 nm diode are you using? I am about to build a TE controlled laser and am looking for a shorter wavelength than 660 nm.
my red is a module PPM25/5838 630nm 25mw it has a built in controller and TE
to combin my beams im using a prism found in a 3ccd video camera for RGB

Danny, can you provide a link the the manufacturer?

Danny Bee · Post by **Danny Bee** » Fri Oct 10, 2008 4:07 pm

Colin Kaminski wrote:
Danny Bee wrote:
DJ Mathson wrote:Nice.
How are you combining the beams?
What kind of 635 nm diode are you using? I am about to build a TE controlled laser and am looking for a shorter wavelength than 660 nm.
my red is a module PPM25/5838 630nm 25mw it has a built in controller and TE
to combin my beams im using a prism found in a 3ccd video camera for RGB
Danny, can you provide a link the the manufacturer?

Colins I got this from ebay their are a few out there, Dave just got one just like mine (his was reworked) coherence according to daves test is 12"... Dave does yours have a manufacturer name on it? mime just has model number PPM25/5838

Danny Bee · Post by **Danny Bee** » Fri Oct 10, 2008 6:24 pm

ok found paper work on it ... it comes from Power Technology Incorporated the module number is TP-PPM/01-4/00 web site http://www.powertechnology.com
here what it looks like http://www.powertechnology.com/ppm.asp?model=PPM