Airy Beam Converters LCAB25-DM-633
LCAB25-DM-633Design Tools
The LBTek Airy Beam Converter is a two-dimensional, first-order optical device fabricated from liquid crystal polymer (LCP) material bonded between N-BK7 glass substrates. The device features a sandwich structure without housing and includes a single-sided 1.5 mm chamfer. In the LCP layer, liquid crystal polymer molecules form a cubic phase distribution, providing uniform half-wave retardation across the entire device plane, making it a single-wavelength component.
The converter produces different beam patterns depending on incident polarization. With circularly polarized input, a single swallow-tailed Airy beam emerges with opposite circular polarization. Linearly polarized light generates two counter-rotating circular polarization Airy beams with opposite orientations and nearly overlapping main lobes.
Key Features
- Converts Gaussian beams into Airy beams with transverse self-accelerating characteristics
- Self-healing properties allowing beam restoration after obstruction
- Non-diffracting features maintaining beam diameter over long propagation distances
- Liquid crystal polymer / N-BK7 window material in sandwich flat structure
- Operating wavelength: 633 nm with 400-700 nm anti-reflection coating
- Clear aperture: 10 x 10 mm
- Transmittance exceeding 98%
| Component Material | Liquid Crystal Polymer/N-BK7 Window Plate |
| Operating wavelength λ | 633 nm |
| Component size | Ø25.4×3.2 mm, single-sided 1.5 mm edge cut |
| Acceptance Angle | ±15 ° |
| Clear Aperture | 10×10 mm |
| Transmitted Wavefront Error | ＜λ/4@633 nm |
| Center offset | ＜0.5 mm |
| Surface Quality (Scratch/Dig) | 40/20 |
| Operating Temperature | -20~80 ℃ |
| Retardance | λ/2 |
| AR Coating | Ravg＜0.5 %@400-700 nm |
| Retardance Wavelength Tolerance | ±5 nm |
| Transmittance | ＞98% |
