Quarter-Wave Plate (λ/4 - QWP)
A quarter-wave plate (λ/4 plate) is a birefringent optical component that introduces a 90-degree phase shift between orthogonal polarization components, converting linear to circular polarization and vice versa. Features include precise λ/4 retardance at the design wavelength; quartz, magnesium fluoride and other substrates for different wavelength ranges; narrowband or broadband AR coatings for high transmission; surface quality of 20-10 or better; low wavefront distortion; diameters from 3mm to 50mm; and customization of wavelength, dimensions, coating and laser-damage threshold.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Material [Hobbite Tech custom range; full series] | Quartz, Sapphire, MgF₂, CaF₂ (Full Series) |
| Wavelength Range [Hobbite Tech Custom Range; UV to Mid-Infrared] | 200nm-5μm (UV to Mid-Infrared) |
| Retardance [Hobbite Tech custom range; high precision] | λ/4 ±0.02λ( High Precision ) |
| Dimensions (Length × Width) [Hobbite Tech Custom Range; Any Rectangular/Circular Shape] | 3mm×3mm～50mm×50mm (Any Rectangular/Circular Shape) |
| Thickness [Hobbite Tech customization range; thin design for compact equipment] | 0.2-5mm (Thin Design, Suitable for Compact Devices) |
| Surface Quality [Hobbite Tech Custom Range; Ra≤0.5nm] | 40-20 Scratch/Dig (Ra≤0.5nm) |
| Laser-Damage Threshold(1064nm) [Quartz; 1064nm] | ≥30J/cm² |
| Laser-Damage Threshold(1064nm) [Sapphire; 1064nm] | ≥50J/cm² |
| Coating Options [Hobbite Tech custom range; R<0.5% @ target wavelength] | Antireflection Coating (R＜0.5% @ Target Wavelength) |
Datasheet
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Supplier Information
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