Looking for spatial filters

[thycore]

Hey folks,

I believe I now need to add spatial filters to my set up, any of you would still have some for sale?

Thanks !

[Valery]

They are very easy to make yourself.
As I did, I can report them, but unfortunately only in Russian.

[Valery]

But now I have stopped using spatial filters and only use homemade lenses, they are much easier to clean and install. All my holograms are made like this.
https://holographyforum.org/forum/viewt ... =19&t=8891

[thycore]

This lens type would for sure expand the beam, but would it also clean the N1+ order harmonics of the laser ? I sorta read it’s best to have a clean airy disk to work with my set up to have better resolution & more uniform exposure ?

[Martin]

But now I have stopped using spatial filters and only use homemade lenses, they are much easier to clean and install. All my holograms are made like this.
https://holographyforum.org/forum/viewt ... =19&t=8891

Fantastic work!
I used a different approach for home made lenses, involving adhesives, photopolymers etc. But your idea seems much better.

[John Klayer]

In the Wiki you can find "John Klayer"s Spatial Filter Plan".
It's simple and very easy to use.

[admin_jsfisher]

Right here, in fact: https://holowiki.org/wiki/John_Klayer%2 ... ilter_Plan