Description
Magnification Calibration
Diffraction Grating Replicas
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.




