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LBTek Polymer Achromatic Quarter-Wave Plate — AQWP25-VIS-A-M
AQWP25-VIS-A-M$499.30
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Polymer Achromatic Quarter-Wave Plate (SM1 Mount) — Model AQWP25-VIS-A-M
Broadband polymer λ/4 waveplate for 400 nm-700 nm, SM1 lens tube (SMI-8A-SP with D-step).
Overview
LBTek's Polymer Achromatic Quarter-Wave Plate uses a Liquid Crystal Polymer (LCP) layer sandwiched between two N-BK7 windows to deliver true λ/4 retardance across the broadband range of 400 nm-700 nm. The polymer achromatic design provides excellent retardance uniformity and wide acceptance angle (±15° AOI), making it ideal for applications requiring achromatic polarization conversion. Each plate is supplied as SM1 lens tube (SMI-8A-SP with D-step).
Key Features
- Polymer achromatic design: uniform λ/4 retardance across 400 nm-700 nm
- Liquid Crystal Polymer between two N-BK7 windows
- Wide acceptance angle: ±15° AOI
- Delay Uniformity: ±5 nm across clear aperture
- Fast-axis accuracy: ±3° to ±5°
- Transmitted Wavefront Error: < λ/2 @ 633 nm (RMS)
- Mounted in SMI-8A-SP housing with D-step, SM1 thread
Applications
- Broadband polarization state conversion (linear ↔ circular)
- White-light and multi-wavelength microscopy
- Ellipsometry and polarimetry
- Optical coherence tomography (OCT)
- Machine vision polarization systems
| Component Material | Liquid Crystal Polymer/N-BK7 Window |
| Retardation | λ/4 |
| Component size | Ø25.4×3.0 mm |
| Delay Uniformity | ±5 nm |
| Operating Wavelength | 400 nm-700 nm |
| Delay accuracy | ±λ/30@400-550 nm & 650-700 nm; ±λ/50@550-650 nm |
| Clear Aperture | Ø21.5 mm |
| Angle of Incidence (AOI) | ±15 ° |
| Surface finish (scratches/pits) | 60/40 |
| Fast-axis accuracy | ±5 ° |
| Anti-reflective coating | 400-700 nm |
| Transmission | >50 %@400-420 nm; >70 %@420-430 nm; >80 %@430-520 nm; >94 %@520-700 nm |
| Reflectance | Ravg<0.5 %(0°incidence angle) |
| Transmitted Wavefront Error (RMS) | <λ/2@633 nm |
| Mechanical housing specification | SM1-8A-SP(with D-step) |
| Transmitted light deflection (without mechanical housing installed) | <1 arcmin |
| Operating Temperature | -20~80 °C |
| Transmitted light deflection (with mechanical housing installed) | <10 arcmin |
CAD Drawing
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Product Family: Polymer Achromatic Quarter-Wave Plates (5 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| LBTek Polymer Achromatic Quarter-Wave Plate — AQWP51-SNIR-A |
AQWP51-SNIR-A
| Ø50.8×3.0 mm | Ø45 mm | 700 nm-1100 nm | View |
| LBTek Polymer Achromatic Quarter-Wave Plate — AQWP51-VIS-A |
AQWP51-VIS-A
| Ø50.8×3.0 mm | Ø45 mm | 450 nm-700 nm | View |
| LBTek Polymer Achromatic Quarter-Wave Plate — AQWP25-SNIR-A-M |
AQWP25-SNIR-A-M
| Ø25.4×3.0 mm | Ø21.5 mm | 700 nm-1100 nm | View |
| LBTek Polymer Achromatic Quarter-Wave Plate — AQWP25-VNIR-A-M |
AQWP25-VNIR-A-M
| Ø25.4×3.0 mm | Ø21.5 mm | 600 nm-800 nm | View |
| LBTek Polymer Achromatic Quarter-Wave Plate — AQWP25-VIS-A-M Current |
AQWP25-VIS-A-M
| Ø25.4×3.0 mm | Ø21.5 mm | 400 nm-700 nm |