Echelle Diffraction Gratings
Optometrics
79 Groove, 75° Echelle, 25 mm Sq., 9.5 mm Thick, CW Type
Price: $257.00
Grooves Per mm |
79 |
Groove Angle |
75° |
|---|---|---|---|
Dispersion @ 500 nm (nm/mr) |
3.28 |
Substrate |
Pyrex |
Size |
25 mm Sq. |
Size Tolerance |
±0.5 mm |
Thickness |
9.5 mm |
Thickness Tolerance |
±0.5 mm |
Coating |
Aluminum |
Scratch/Dig |
60/40 |
Clear Aperture |
90% |
Edge Angle |
90° ±0.50° |
Perpindicularity |
90° ±0.50° |
Operating Temperature Range |
-50° C to +200° C |
Damage Threshold: Pulsed laser |
3.5 J/cm², 200 nano sec. pulse |
Damage Threshold: CW Laser |
250 watts/cm² |
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