Fresnel Rhomb Retarders
Broad Wavelength Range: The retarders offer retardance over a wide wavelength range, typically from 400 nm to 1550 nm or even broader depending on the material used.
Quarter-Wave or Half-Wave Retardance: The quarter-wave retarder introduces a 90° phase shift between the orthogonal polarization components, while the half-wave retarder introduces a 180° phase shift.
Uniform Retardance: The retardance is uniform across the specified wavelength range, with minimal variation.
Cemented Prisms: The rhomb retarders are constructed from cemented prisms, ensuring structural integrity and stability.
Easy Installation: Many models come with SM1-threaded mounts, allowing for easy installation using standard optical mounts.
Applications: Optics and Photonics Research, Laser Systems, Optical Instrumentation, Telecommunications, etc.
Fresnel Rhomb Retarders are optical components designed to introduce a specific phase shift between orthogonal polarization components of light. They act like broadband waveplates, providing uniform λ/4 or λ/2 retardance over a wider range of wavelengths than traditional birefringent waveplates.
Specifications:
| Material | UV Fused Silica/BK7/ZnSe |
| Aperture Diameter | 10.0mm |
| Wavelength Range | 210-400nm (UV Fused Silica), 350-2300nm (BK7), 2000-15000nm (ZnSe) |
| Retardation | λ/2 or λ/4 |
| Retardation Tolerance | +/-2° |
| Broad band AR Coating | R<1%@600-900nm |
| Surface Quality | 20/10 S/D (UV Fused Silica), 20/10 S/D (BK7), 40/10 S/D (ZnSe) |
| Flatness | λ/10@632.8nm (UV Fused Silica), λ/10@632.8nm (BK7), λ/4@632.8nm (ZnSe) |
| Mount | Mounted |
Key Features:
- Broad Wavelength Range: The retarders offer retardance over a wide wavelength range, typically from 400 nm to 1550 nm or even broader depending on the material used.
- Quarter-Wave or Half-Wave Retardance: The quarter-wave retarder introduces a 90° phase shift between the orthogonal polarization components, while the half-wave retarder introduces a 180° phase shift.
- Uniform Retardance: The retardance is uniform across the specified wavelength range, with minimal variation.
- Cemented Prisms: The rhomb retarders are constructed from cemented prisms, ensuring structural integrity and stability.
- Easy Installation: Many models come with SM1-threaded mounts, allowing for easy installation using standard optical mounts.
Applications:
- Optics and Photonics Research: Used in experiments involving polarization-sensitive phenomena.
- Laser Systems: Employed in laser beam shaping, polarization modulation, and other laser manipulation techniques.
- Optical Instrumentation: Integrated into optical spectrometers, polarimeters, ellipsometers, and other precision instruments.
- Telecommunications: Utilized in optical fiber communication systems for polarization-division multiplexing and other advanced techniques.
Fresnel Rhomb Retarders from Kingwin Optics are versatile optical components designed for applications requiring precise polarization control over a wide wavelength range. Their broad wavelength coverage, uniform retardance, and ease of installation make them an ideal choice for researchers, engineers, and other professionals working in optics and photonics.
