Retardation Plates
LINOS® Retardation Plates use high-grade crystal quartz to deliver precise polarization control for advanced optical and photonic applications. Their superior optical homogeneity and low wavefront distortion preserve beam quality and ensure consistent performance. The advanced anti-reflective coating minimizes reflection losses and increases transmission efficiency at the specified wavelength, enabling stable, accurate measurements. High surface quality and precise parallelism minimize optical effects such as beam deviation and scattering.
Our quartz retardation plates offer extremely tight retardation tolerances, enabling highly consistent phase control and long-term stability even under challenging operating conditions. They also offer exceptional thermal stability, durability, and resistance to environmental influences. Typical applications include laser systems, interferometry, spectroscopy, optical metrology, polarization analysis, and precision photonics setups in research and industrial environments.

Type S: Single plate (multiple order), retardation λ/2 or λ/4, thickness < 0.5 mm

Type D: Double plate (zero order), optically contacted quartz plates, retardation λ/2 or λ/4
| Product | Retardation Plate S 488nm; D=10; L/2; mounted | Retardation Plate S 532nm; D=10; L/2; mounted | Retardation Plate S 780nm; D=10; L/2; mounted | Retardation Plate S 1064nm; D=10; L/2; mounted | Retardation Plate S 532nm; D=10; L/4; mounted | Retardation Plate S 633nm; D=10; L/4; mounted | Retardation Plate S 1064nm; D=10; L/4; mounted | Retardation Plate S 488nm; D=20; L/2; mounted | Retardation Plate S 532nm; D=20; L/2; mounted | Retardation Plate S 633nm; D=20; L/2; mounted | Retardation Plate S 780nm; D=20; L/2; mounted | Retardation Plate S 1064nm; D=20; L/2; mounted | Retardation Plate S 488nm; D=20; L/4; mounted | Retardation Plate S 532nm; D=20; L/4; mounted | Retardation Plate S 633nm; D=20; L/4; mounted | Retardation Plate S 780nm; D=20; L/4; mounted | Retardation Plate S 1064nm; D=20; L/4; mounted | Retardation Plate D 488nm; D=10; L/2; mounted | Retardation Plate D 532nm; D=10; L/2; mounted | Retardation Plate D 633nm; D=10; L/2; mounted | Retardation Plate D 780nm; D=10; L/2; mounted | Retardation Plate D 1064nm; D=10; L/2; mounted | Retardation Plate D 488nm; D=10; L/4; mounted | Retardation Plate D 532nm; D=10; L/4; mounted | Retardation Plate D 633nm; D=10; L/4; mounted | Retardation Plate D 780nm; D=10; L/4; mounted | Retardation Plate D 1064nm; D=10; L/4; mounted | Retardation Plate S 532nm; D=10; L/2 | Retardation Plate S 780nm; D=10; L/2 | Retardation Plate S 1064nm; D=10; L/2 | Retardation Plate S 532nm; D=10; L/4 | Retardation Plate S 633nm; D=10; L/4 | Retardation Plate S 1064nm; D=10; L/4 | Retardation Plate S 488nm; D=20; L/2 | Retardation Plate S 532nm; D=20; L/2 | Retardation Plate S 633nm; D=20; L/2 | Retardation Plate S 780nm; D=20; L/2 | Retardation Plate S 1064nm; D=20; L/2 | Retardation Plate S 488nm; D=20; L/4 | Retardation Plate S 532nm; D=20; L/4 | Retardation Plate S 633nm; D=20; L/4 | Retardation Plate S 780nm; D=20; L/4 | Retardation Plate S 1064nm; D=20; L/4 | Retardation Plate D 488nm; D=10; L/2 | Retardation Plate D 532nm; D=10; L/2 | Retardation Plate D 633nm; D=10; L/2 | Retardation Plate D 780nm; D=10; L/2 | Retardation Plate D 1064nm; D=10; L/2 | Retardation Plate D 488nm; D=10; L/4 | Retardation Plate D 532nm; D=10; L/4 | Retardation Plate D 633nm; D=10; L/4 | Retardation Plate D 780nm; D=10; L/4 | Retardation Plate D 1064nm; D=10; L/4 |
| Length | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | ||||||||||||||||||||||||||
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Optic Size | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm |
| Mount | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | ||||||||||||||||||||||||||
| Substrate | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz |
| Clear aperture | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | ||||||||||
| Wavelength Range | 488.0 nm | 532.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 633.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 633.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm |
| Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted |
| Retardation | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 |
| Outer Mount Diameter | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | ||||||||||||||||||||||||||
| Coating Specification | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm |
Precision crystal quartz retardation plates for highly stable and accurate polarization control
Available as λ/2 and λ/4 retarders for flexible phase manipulation in optical systems
Broadband anti-reflection coating (R < 0.2%) minimizes reflection losses and improves transmission efficiency
Excellent optical quality with λ/8 wavefront distortion and 20/10 scratch-dig surface quality for precise beam preservation and low scattering
Parallelism better than 1″ and typical retardation tolerance of λ/500 ensure highly accurate and repeatable optical performance
Type S: compact single-plate multiple-order design (<0.5 mm thickness) for space-saving optical integration
Type D: optically contacted double-plate zero-order design for enhanced thermal stability and reduced wavelength sensitivity
Custom retardation plates available for high-volume and application-specific requirements




| Product | Retardation Plate S 488nm; D=10; L/2; mounted | Retardation Plate S 532nm; D=10; L/2; mounted | Retardation Plate S 780nm; D=10; L/2; mounted | Retardation Plate S 1064nm; D=10; L/2; mounted | Retardation Plate S 532nm; D=10; L/4; mounted | Retardation Plate S 633nm; D=10; L/4; mounted | Retardation Plate S 1064nm; D=10; L/4; mounted | Retardation Plate S 488nm; D=20; L/2; mounted | Retardation Plate S 532nm; D=20; L/2; mounted | Retardation Plate S 633nm; D=20; L/2; mounted | Retardation Plate S 780nm; D=20; L/2; mounted | Retardation Plate S 1064nm; D=20; L/2; mounted | Retardation Plate S 488nm; D=20; L/4; mounted | Retardation Plate S 532nm; D=20; L/4; mounted | Retardation Plate S 633nm; D=20; L/4; mounted | Retardation Plate S 780nm; D=20; L/4; mounted | Retardation Plate S 1064nm; D=20; L/4; mounted | Retardation Plate D 488nm; D=10; L/2; mounted | Retardation Plate D 532nm; D=10; L/2; mounted | Retardation Plate D 633nm; D=10; L/2; mounted | Retardation Plate D 780nm; D=10; L/2; mounted | Retardation Plate D 1064nm; D=10; L/2; mounted | Retardation Plate D 488nm; D=10; L/4; mounted | Retardation Plate D 532nm; D=10; L/4; mounted | Retardation Plate D 633nm; D=10; L/4; mounted | Retardation Plate D 780nm; D=10; L/4; mounted | Retardation Plate D 1064nm; D=10; L/4; mounted | Retardation Plate S 532nm; D=10; L/2 | Retardation Plate S 780nm; D=10; L/2 | Retardation Plate S 1064nm; D=10; L/2 | Retardation Plate S 532nm; D=10; L/4 | Retardation Plate S 633nm; D=10; L/4 | Retardation Plate S 1064nm; D=10; L/4 | Retardation Plate S 488nm; D=20; L/2 | Retardation Plate S 532nm; D=20; L/2 | Retardation Plate S 633nm; D=20; L/2 | Retardation Plate S 780nm; D=20; L/2 | Retardation Plate S 1064nm; D=20; L/2 | Retardation Plate S 488nm; D=20; L/4 | Retardation Plate S 532nm; D=20; L/4 | Retardation Plate S 633nm; D=20; L/4 | Retardation Plate S 780nm; D=20; L/4 | Retardation Plate S 1064nm; D=20; L/4 | Retardation Plate D 488nm; D=10; L/2 | Retardation Plate D 532nm; D=10; L/2 | Retardation Plate D 633nm; D=10; L/2 | Retardation Plate D 780nm; D=10; L/2 | Retardation Plate D 1064nm; D=10; L/2 | Retardation Plate D 488nm; D=10; L/4 | Retardation Plate D 532nm; D=10; L/4 | Retardation Plate D 633nm; D=10; L/4 | Retardation Plate D 780nm; D=10; L/4 | Retardation Plate D 1064nm; D=10; L/4 |
| Length | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | 10.0 mm | ||||||||||||||||||||||||||
| Shape | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular | Circular |
| Optic Size | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 20.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm | Ø 10.0 mm |
| Mount | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | Microbench | ||||||||||||||||||||||||||
| Substrate | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz | Crystalline Quartz |
| Clear aperture | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 19.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | 9.0 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | Ø 8.5 mm | ||||||||||
| Wavelength Range | 488.0 nm | 532.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 633.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 780.0 nm | 1064.0 nm | 532.0 nm | 633.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm | 488.0 nm | 532.0 nm | 633.0 nm | 780.0 nm | 1064.0 nm |
| Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Mounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted | Unmounted |
| Retardation | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 | λ/2 | λ/2 | λ/2 | λ/2 | λ/2 | λ/4 | λ/4 | λ/4 | λ/4 | λ/4 |
| Outer Mount Diameter | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | 25.0 mm | ||||||||||||||||||||||||||
| Coating Specification | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm | R<0.2% @488 nm | R<0.2% @532 nm | R<0.2% @633 nm | R<0.2% @780 nm | R<0.2% @1064 nm |
Precision crystal quartz retardation plates for highly stable and accurate polarization control
Available as λ/2 and λ/4 retarders for flexible phase manipulation in optical systems
Broadband anti-reflection coating (R < 0.2%) minimizes reflection losses and improves transmission efficiency
Excellent optical quality with λ/8 wavefront distortion and 20/10 scratch-dig surface quality for precise beam preservation and low scattering
Parallelism better than 1″ and typical retardation tolerance of λ/500 ensure highly accurate and repeatable optical performance
Type S: compact single-plate multiple-order design (<0.5 mm thickness) for space-saving optical integration
Type D: optically contacted double-plate zero-order design for enhanced thermal stability and reduced wavelength sensitivity
Custom retardation plates available for high-volume and application-specific requirements



