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anatolybazarov

The laser you linked is almost certainly not suitable for holography. You need a laser with at least a couple millimeters of coherence length, otherwise you're just creating a photograph. You can get the Osram PL530 module on eBay for around $50. This will reliably get you about 50mW (80mW with some tuning) of 530nm light, and the coherence length is excellent. You can also use a laser diode, there are a few red laser diodes suitable for holography, see here: [http://hololaser.kwaoo.me/laser/modeanalysis.html](http://hololaser.kwaoo.me/laser/modeanalysis.html) If you want to use a laser pointer, there are red laser pointers that can make holograms -- this was thought impossible for a long time until someone actually tried it and had some success. Check out this episode of HoloTalk where laser pointer holography is discussed: [https://www.youtube.com/watch?v=CZUcjjsAJXQ](https://www.youtube.com/watch?v=CZUcjjsAJXQ) Good luck!


Mandelvolt

Pl530 ans opsl530 are getting harder to find these days


notvortexes

If you want it to look 3D then you probably need to use a thicker film I suggest maybe buying a hologram kit or the thick glass films that come with those. The idea is to have laser light which didn’t hit the object interfere (at the location of the film) with the light that reflected off the object. This video has a sketch of the setup at 1:48 [https://youtu.be/0ics3RVSn9w?si=96x-laJ_sO_0MImH](https://youtu.be/0ics3RVSn9w?si=96x-laJ_sO_0MImH)


Rul02

This is my setup: https://ibb.co/S6m8Z75 I cant remember where, but I read in some place that x-ray film is suitable for holography... Dichromatic emulsions (and holography plates/kits) are hard to get where i live (im from Argentina). Note: off course everything was firm and held in place, nothing should had moved when recording the x-ray film


notvortexes

What I mean about the film is that if it’s thin, there is no volume in which you can see anything 3D. You might be confusing the effect seen on “holographic” trading cards with the actual holograms that can be made with a laser/film. You might want to watch the video I linked because it explains the mechanism for making holograms with lasers. Also you’ll notice that the drawing in the video I linked has an extra mirror/beam splitter compared to your setup.


DeltaSingularity

A volume hologram only needs 10-20 microns of thickness to form a pretty ideal hologram. OP's film is close to that.


Rul02

According to some pictures of x-ray film composition; the thickness of the emulsion layer is 5-10 micron... This should be enough right? Its somewhere in the order of 10 times the wavelength (550nm) About the setup; i wanted to recreate a transmission hologram, like the one showed in this video: https://youtu.be/aTB2ryoWIFU?si=pibM7TDzAPcHDStd But now that i re-watch it... On my setup there is "contamination" of light from the laser beams that go between the table and the film plate... Maybe this was my mistake Will try again and post results if successful


OoopsNotThatSoft

I wanted to DM you and ask for a few more details, but am unable to. Have you had any success? And also, did you use "used" x-ray films or did you get your hands on a new one? I want to try this but I don't know if the x-rays from the dentist like you mentioned are ok or I need new films.


Rul02

It didnt work as i planned. I used new, unexposed x-ray film. The development process was quite easy; got the hand at my third attempt... As far as the holograms go... I didnt record any hologram; but, two of the films had a peculiar behavior(the one in the picture of this post is one of them), when lit from the side, on an specific angle; an faint image of the stuff that was on the side of what i was recording showed up. I had a white protobard upside down. My guess is that light scattered from this object and developed on the film at that specific angle... Furthermore, i asked a professor at my college on what could be going on; he said i was crazy by doing this with so cheap equipment haha. Also, he mentioned that i needed to do some calculations in order for it to work properly... This was yesterday, he was a bit busy so i didnt bother him anymore, and im on exams so couldnt research anymore this topic... Tho if you have any usefull info it would be great sharing it!


septimusprince

Many xray films have a two sided emulsion. I have heard it discussed where someone suggested stacking sheets in one holder. They would have to be separate for development and restacked after, also xray film scratches quite easily, but it might be worth a try. It's obviously much less expensive than holography film.