large reflective burst diffraction grating sheet

[Junktronix]

I've attached some of this to my bounce mirrors with reasonably impressive results in the past

http://www.teachersource.com/product.../light-spectra

[mixedgas]

Jon,. Thats a Yamagama

Google Hiro Yamagama laser

He contracts stuff to the nearest large laser company.

I once got a offer to work for his "contractor" for 6 months, but could not justify quittin the "day job".
No one gives up access to a state employees retirement system :-0

Steve