Diffraction Apertures on Glass Plate

Diffraction Apertures on Glass Plate – 1008664Glass plates with 12 different single and double diffraction apertures for quantitative diffraction experiments.
Diameter of support:40 mm
Aperture irregularities:<1 µm
Single apertures:
Diameters:20, 30, 50, 100, 200 and 500 µm
Double apertures:
Separations:100, 200 and 400 µm
Diameter:50 µm
Rectangular apertures:
Dimensions:70 x 70 µm², 200 x 200 µm² and 70 x 200 µm²