Polymer Superachromatic Quarter-Wave Plate SAWP20Q-VISP
JCOPTIX polymer superachromatic quarter-wave plates combine H-K9L plane windows and liquid-crystal polymer films. Precision design provides excellent achromatic performance across the operating band, enabling conversion between linear and circular polarization over a broad spectrum. JCOPTIX polymer superachromatic quarter-wave plates cover 400-750 nm and suit beam diameters from 0.1 mm to 20 mm. All are mounted in standard black retaining rings with 25.4 mm outside diameters. Ring sides are laser-marked with the company logo, model, retardance, operating band, and other key parameters; end faces mark fast-axis direction. Fast axis: the composite thin-film structure makes the equivalent fast axis vary within the operating band, with shifts controlled within ±3°. Retardance: film thickness and fast-axis angle jointly determine phase retardance, so actual curves vary between components. Product-page data represents typical performance over 400-750 nm; every component's retardance is strictly controlled within specifications. JCOPTIX customizes polymer achromatic plates, including operating wavelengths and sizes. Polymer superachromatic quarter-wave plates, clear aperture: 20.0 mm. Accurate phase retardance over a broad spectrum. Large 20.0 mm clear aperture. Mounted and ready to use. JCOPTIX polymer superachromatic quarter-wave plates cover 400-750 nm and suit beam diameters from 0.1 mm to 20 mm. Commonly used to convert linear to circular polarization, they mount in standard 25.4 mm diameter retaining rings engraved with model, phase retardance, design wavelength, and fast-axis direction for quick identification.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength | 400-750 nm |
| Coating Ravg [400-1100 nm; 0° angle of incidence] | Antireflection Coating: 400-1100 nm, Ravg<1% (0° Incidence) |
| Retardance | λ/4 |
| Retardance accuracy [400-500 nm Corresponds to ±λ/50; 500-750 nm Corresponds to ±λ/100] | 400-500 nm ±λ/50; 500-750 nm ±λ/100 |
| Fast Axis Drift | ±3° |
| Angle of Incidence (AOI) | ±10° |
| Transmittance [400-420 nm: >70%; 420-460 nm: >80%; 460-530 nm: >90%; 530-750 nm: >97%] | 400-420 nm>70%; 420-460nm>80%; 460-530 nm>90%; 530-750nm>97% |
| Transmitted Beam Deviation | <10 arcmin |
| Clear Aperture Dimension | Ø20.0 mm |
| Retardance Uniformity (RMS) | ±5 nm |
| General Parameters - Element Material | Liquid Crystal Polymer and H-K9L Glass Substrate |
| General Parameters - Mechanical Housing | Ø25.4 mm × 7.8 mm Retaining Ring |
| General Parameters - Operating Temperature | -20 - 60 ℃ |
| General Parameters - Surface Quality (Scratch/Dig) | 80/50 |
| General Parameters - Thickness Tolerance | ±0.05 mm |
| General Parameters - Diameter Tolerance | +0.00/-0.05 mm |
| General parameters - damage threshold [515 nm；10 Hz；202 fs；Ø113 µm] | 0.1 J/cm2 (515 nm, 10 Hz, 202 fs, Ø113 µm) |
| General Parameters - Transmitted Wavefront Error [@633 nm] | λ/2 |
Key Features
Datasheet
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