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Polymer Vortex Retarders VR8-488
VR8-488$866.81
In Stock
Key Specifications
Wavelength
488.0nm
Reflectance
0.5%
Transmittance
400.0%
Design Tools
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REACH
The LBTEK Vortex Retarder (VR) is fabricated using N-BK7 glass substrates and Liquid Crystal Polymer (LCP) materials, featuring a sandwich structure of "front and rear glass substrates with an intermediate LCP functional layer," and is mounted in a standard SM1 lens tube.
In the LCP layer, the fast-axis orientation of the liquid crystal molecules is uniformly aligned along the radial direction of the substrate and continuously varies along the angular direction. The device exhibits a uniform λ/2 retardation across the entire plane, making it a single-wavelength component.
The vortex retarder possesses polarization-dependent optical characteristics. With different polarization states of the incident beam, it can generate vector-polarized beams or vortex beams with spiral phase fronts, converting TEM00-mode Gaussian beams into hollow "doughnut-shaped" intensity distributions.
Compared to traditional methods of optical field modulation, the vortex retarder offers high efficiency, stability, ease of operation, and dedicated functionality. Its true zero-order characteristic also contributes to low wavelength sensitivity, high temperature stability, and a wide range of incident angles.
Key Features
- Liquid Crystal Polymer/N-BK7 window plate, sandwich flat structure, with mechanical housing
- Polarization-dependent, applicable for generating vector polarized beams and vortex beams
- Highly efficient and stable, easy to operate, specialized function, large incident angle
- Operating wavelength λ: 405–1550 nm, order m: 1–128
- Flexible customization of parameter specifications available
m=8 Series
The m=8 vortex waveplate is suitable for incident light with diameters ranging from Ø1 mm to Ø21.5 mm. When illuminated with circularly polarized light, it can generate Laguerre-Gaussian beams with l=±8; under linearly polarized light, it produces higher-order vector polarized beams. The smaller the selected order m, the smaller the central hole size of the beam.
- Applicable to incident light with dimensions Ø0.15 to Ø21.5 mm
- Capable of generating Laguerre-Gaussian beams with l=±8
- Capable of generating higher-order vector polarized beams
| Diffraction Order | 8 |
| AR Coating Reflectance | Ravg < 0.5% (0° angle of incidence) |
| Operating wavelength λ | 488 nm |
| Acceptance Angle | ±20 ° |
| Performance | SM1-8A Housing |
| Beam Diameter Range | Ø0.15~Ø21.5 mm |
| Component Material | Liquid Crystal Polymer/N-BK7 Window Plate |
| AR Coating | 400-700 nm |
| Component size | Ø25.4×3.2 mm |
| Clear Aperture | Ø21.5 mm |
| Retardance Tolerance | ＜λ/4@633 nm |
| Center offset | ＜0.5 mm |
| Surface Parallelism | ＜1 arcmin |
| Surface Quality (Scratch/Dig) | 40/20 |
| Operating Temperature | -20~80 ℃ |
| Optical Axis Angle Tolerance | ±1 ° |
| Retardance | λ/2 |
| Diffraction Efficiency | ＞96 % |
| Retardance Wavelength Tolerance | ±5 nm |
No CAD drawings available for this product.
Curve - Double-N-BK7-glass-with-LCP-coating-(3.2-mm-Thick)
Curve 2
Curve 1
