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| Coad | 668897 | Parallelism | <10 arcsec | |
| Type | Zero-Order Air-Spaced Waveplate | Mount Type | Black Anodized Metal Mount | |
| Substrate | Crystalline Quartz | Retardation Tolerance | λ/300 @ 20 °C | |
| Mounting Dimensions (mm) | 12.7 | Retardation Order | 0级 | |
| Clear Aperture（mm） | >18 | Surface Quality S1 | 20-10 S-D | |
| Wavelength(nm) | 515 | Surface Quality S2 | - | |
| Optical Retardance | λ/4 | Transmission Wavefront Deviation | <λ/10 @ 633 nm | |
| Diameter | - | Coating Type | IBS Coating (AR) | |
| Coating Specifications | R<0.2% @ 515 nm | |||
Due to the birefringent properties of the material, a waveplate delays one component of polarized light, creating a phase shift and changing the polarization state of the transmitted light. Zero-order air-spaced waveplates provide optimal performance because they are minimally sensitive to wavelength and temperature variations.
A zero-order air-spaced waveplate is a high-precision optical element designed to control the polarization state of light. By utilizing the birefringent properties of the material, it delays one component of polarized light to generate a phase shift and alter the polarization state of the transmitted beam. Compared with traditional multiple-order waveplates, zero-order waveplates offer significant advantages. First, they provide extremely high accuracy and a consistent phase shift, ensuring precise polarization control in optical systems. This makes them suitable for high-precision experiments such as laser modulation, quantum optics, and advanced microscopy. Second, zero-order waveplates feature a broad wavelength compatibility, making them suitable for different light sources and especially effective in laser systems. Finally, they exhibit very low dispersion, allowing for more precise polarization control and avoiding the dispersion issues of higher-order waveplates, thereby enhancing the stability and performance of optical systems. In summary, zero-order waveplates are widely applied in high-end optical systems and laser applications that demand precise polarization control, thanks to their high precision, wide wavelength adaptability, and low dispersion.
Notes: To ensure optimal performance, it is recommended to store and operate the waveplate at 25 °C with relative humidity between 40% and 60%. If the optical surface becomes contaminated, gently clean it using >99% alcohol and lint-free lens tissue. Do not use rough fabrics, water, or abrasive cleaners, as they may damage the coating.
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