Magnification calibration diffraction grating replicas, 2160 l/mm

Carbon replicas with Au/Pd shadowing of diffraction line gratings, parallel line, waffle pattern gratings. Made on a G400, 400 square mesh copper Gilder grid. Typically, parallel is used up to ~40-50,000x, while the waffle is used up to ~80-100,000x. Parallel line gratings are 2,160 lines/mm (54,864 lines/inch). The waffle is 2,160 lines/mm in both directions. Line or "d" spacing for parallel line grating is 462.9nm. Instructions included.
PELCO® Technical Notes, Magnification Calibration Diffraction Grating Replica, Product No. 606 (PDF)

PELCO® Technical Notes, Magnification Calibration Diffraction Grating Replica, Product No. 607 (PDF)