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Features
 The Air-Spaced Zero Order Waveplate performance is as good as cemented zero order waveplate. Additionally, the air-spaced construction enables it is suitable for the high power laser application. The damage threshold is more than 500MW/cm2.
Specifications
Specifications:
Material: Quartz
Diameter Tolerance: +0.0, -0.1mm
Wavefront Distortion : λ/8 @ 632.8nm
Retardation Tolerance: λ/300
Parallelism: <1 arc second
Surface Quality: 20/10
Clear Aperture: >90%
Coating: S1&S2: R<0.2% @ wavelength


Double Retardation Plates
AR Coated,R<0.2% and Mounted
High Damage Threshold
Better Temperature Bandwidth
Wide Wavelength Bandwidth

Half Waveplates P/N# Quarter Waveplates P/N# Mount Diameter(mm) Aperture(mm) Clear Aperture(mm) Mount Thickness(mm)
WPA210 WPA410 25.4 12.7 10 8
WPA212 WPA412 25.4 15 12.7 8
WPA215 WPA415 25.4 20 15 8
WPA220 WPA420 30 25.4 20 8
WPA225 WPA425 30 25.4 23.5 8