Holographyforum.org / holowiki.org

Hello good afternoon I'm Antonio from Barcelona. I put into practice the recommendations that you told me about table construction (some time ago), and it seems that it is beginning to bear fruit. Thank you all, I've gotten nice transmission holograms with top reference and two side object beams, ad...

a question that has intrigued me lately, it is always said that the reflection of the lenses is not good so we usually deviate the lens a bit so that the reflection back does not reach the laser, but what happens with the spatial filter, usually I it is impossible to adjust it well and clean the bea...

Good afternoon from Barcelona, ​​we usually say that the experience is a grade, therefore I will modify the structure of the table using all these forum tips, when this is uploaded some photos, thank you very much for the advice greetings to all

I'm sorry the translation into English was not correct, I wanted to say that the iron plate rests on 12 rubber spread over the concrete block, I don't understand your answer

here is the picture

tables composition? I suppose you mean the table, it is a concrete block 120x80cm and 8cm high with a 1cm thick iron plate, all attached with 5 legs (a central one) on 5 rubber to insulate the floor, instead of gluing the iron iron on the concrete, rests on 12 10x10cm tires, distributed, it was done...

the table is in a closed room, but I live in an attic, an eighth near the subway, they are not good conditions for holograms

I have assembled a simple interferometer to verify the laser stability and it is correct, the stripes do not move, but if I mount it to verify the stability of the table then if they move, a while ago verify it and at that time it was correct

good morning, I feel the delay, the laser gives 19mw, I really do not know how much it was, it is from 1999, I have reassembled the interferometer, with another laser, to see the stability of the table, and it is a disaster, the stripes They are not still, despite the works that are on the street I ...

compass 315m 20mw