Looking for diffraction gratings capable of withstanding high power.

[Eidetic]

Dan, Access Have you to CNC?
(before you say not enough resolution, thimk, there is a way)

Steve

Look for info on "scratch holograms".

[mixedgas]

Scribing plus motion stage or piezo stage = very nice rudimentary metal grating. Same can be said for machine winding alternating metal threads and removing one, or gluing glass fibers in parallel. UV Yag laser cutter might do some interesting things.

If you want a 2 axis copper transmission grating, try a TEM grid. I've used TEM grids for gratings, but never tried it pulsed. I've also used them for photo-etching masters, so that might be another way to make a XY grating.

Blessings,

Steve

[planters]

Daniel,
What type of effect are you trying to produce or what are you going to do with the grating?

[danielbriggs]

Eric, they are for a ~40W LSCP, reflective narrow burst/grid grating.
I am well aware of the safety implications of said pulses on such a wide dispersion.
@O-like: thanks for the tip, but their ordering system has gone very odd on their last few orders, and all emails bounce to the contacts I had there. This puts me off ordering anything else from them; they were once very good.

Steve, I do have CNC capability... at least 1.5µm resolution in one axis, faster 3m/min in the other CNC axis; I could possibly borrow a stage from a test station I made to do that.
Hmm...

I emailed Peter, with no response as of yet.

[mixedgas]

I'd call Peter, he's old school.

light reading:

http://www.gratinglab.com/Informatio.../Handbook.aspx
That book has been diluted by the marketing people, however its still a good read.

Peter's masters were written with a E-Beam. However, the classic method was scribing.

If you only have 100 lines per mm or something, you just get narrow fans and fewer orders.

There has to be a way.

Once upon a time I was writing complex gratings in a liquid crystal/photopolymer/Rose Bengal mix.
I spent 6 months getting paid to build the machine and write patterns, I found making test gratings using a glass wedge to be fun.
It is much easier then image holography until you need to dial it in for a specific lines per inch etc..


Steve