Product Description
Material: Crystal Quartz+MgF2
Dimension Tolerance: +0.0/-0.2mm
Wavefront Distortion: λ/4@632.8nm (for air spaced type)
Retardation Tolerance: λ/100
Parallelism: <10 arc seconds (for single plate)
Surface Quality: 40/20 scratch and dig
Clear Aperture: >90% central area
Standard Wave: quarter-wave(λ/4), half-wave(λ/2)
Standard Wavelength: 450-650nm, 550-750nm, 650-1100nm, 900-2100nm
Coating: Both sides AR coated, R<1% per face
Damage Threshold: Cemented: >500mJ/cm2, 20ns, 20Hz @1064nm; Air spaced: >5J/cm2, 20ns, 20Hz @1064nm
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