09 Feb 2009 Dia0.5-inch 766nm Low-order 1/4 Waveplate
Diameter 0.5-inch, unmounted
Low-order (n<5); Quarter-wave
P < 3 arc seconds; Retardation tolerance < Lambda/300
AR coating (R<0.25%) http://www.optics.com.sg/list.asp?ProdId=00807&LarCode=Polarization+Optics&MidCode=Low%2Dorder+Waveplates
Material: Crystal Quartz
Diameter: 12.7mm +0.0/-0.1mm Unmounted
Type: Low-order (n<5), Quarter-wave
Parallelism: < 3 arc second
Retardance Accuracy(typ): < Lambda/300
Wavefront Distortion: Lambda/10
Surface Quality: 20/10 scratch and dig
Damage Threshold: 2J/cm2 @ 10ns 1064nm
AR Coated: AR/AR @ 766 +/-20nm (R<0.25%)
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