Material: High grade quartz crystals.
Ultrathin single-plate design (~<100 μm) with large bandwidth and minimum
group delay dispersion (GDD).
All optical surfaces AR coated.
Optically robust with a high damage threshold.
Two plate sizes available:
diameter 15 mm, mounted in OD 1" holder and
diameter 1" (25.4 mm), mounted in OD 30 mm holder
Mount adaptors available (OD 30 mm--OD 2")
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Dual Wavelength Waveplate Specifications:
Dimensions Tolerance: +/- 0.1 mm
Wavefront Distortion: < λ/8 @632.8 nm
Retardation Tolerance (typical): +/- λ/30 -- +/- λ/100 for both wavelengths
Surface Quality: 20-10 scratch and dig
Coating: AR coating with R < 0.5% at both wavelengths
Holder: OD 1" or 30mm anodized aluminum holder
Clear Aperture: > Aperture (plate) - 2.0 mm (mounted)
Retardance curves @ 800 nm and 400 nm:
The ultrathin dual waveplate is an accurate 0th-order half waveplate @ 800nm and an approximate full waveplate @ 400nm. With the fast axis set @ 45 deg, a linearly polarizated light @ 800nm is rotated by 90 deg and remains linear polarized while a linearly polarized light @ 400nm becomes slightly elliptical with the amplitude along the original polarization reduced by ~ 5%.
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