Polymer True Zero-Order Half-Wave Plate TWP20H-442P
JCOPTIX offers liquid crystal polymer true zero-order wave plates. Two UV fused silica windows sandwich and protect the functional polymer film. All plates are installed in standard black rings of 25.4 mm outside diameter or standard SM lens tubes, with laser-marked fast-axis directions on the ring face or tube side. Compared with conventional zero-order quartz plates, these polymer plates allow larger angles of incidence (AOI), suiting applications requiring low AOI sensitivity or large incidence angles. Polymer true zero-order half-wave plates rotate incident polarization. If linear input polarization is at θ to the fast axis and the ordinary-to-extraordinary phase difference is π, output remains linear but rotates toward the fast axis by 2θ. At θ=45°, polarization rotates 90°. Consult the technical team in advance for special high-temperature or high-humidity environments.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | Liquid Crystal Polymer and UVFS Window |
| Retardance accuracy | ± λ/100 |
| Retardance uniformity (RMS) | ± 5 nm |
| Coating | Antireflection coating: 350-700 nm |
| Antireflection Coating R_avg [6° angle of incidence; per surface] | R_avg< 0.5% (6° angle of incidence, per surface) |
| Transmitted wavefront error [@633 nm] | λ/2 |
| Surface parallelism | < 3 arcmin |
| Surface quality (scratch/dig) | 40/20 |
| Angle of incidence (AOI) | ± 15° |
| Mechanical housing | Standard retaining ring with an outside diameter of 25.4 mm |
| Diameter Tolerance | +0.00/-0.05 mm |
| Thickness Tolerance | ± 0.05 mm |
| Operating Temperature | -20-60 °C |
| Clear Aperture Dimension | 20 mm |
| Design Wavelength | 442 nm |
| Diameter | 25.4 mm |
| Retardance | λ/2 |
| General parameters - damage threshold [515 nm；10 Hz；202 fs；Ø113 µm] | 0.1 J/cm² (515 nm, 10 Hz, 202 fs, Ø113 µm) |
Key Features
Datasheet
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