The 05RP14-12 Multiple-Order Quarter Wave Plate is a crystal quartz optic designed to differentially retard the phase of a polarized beam. With the proper phase shift, this waveplate can be used to convert linear polarization into circular polarization. This 1/2 inch (12.7 mm) diameter wave plate is 1 mm thick and has &lambda,/4 (90) retardation. It is antireflection coated to maximize transmission at 488 nm. When using multiple-order wave plates, several items should be considered. A wave plate of practical thickness produces a multiple of &lambda,/4 or &lambda,/2 retardation. Higher orders cause retardation to vary dramatically with wavelength. Wave plates are sensitive to temperature changes. A typical multiple-order wave plate has a temperature coefficient of 0.0015&lambda,/C, compared to 0.0001&lambda,/C for a zero-order wave plate, so tighter temperature control will be required. Precise adjustment of retardation is possible by tilting the wave plate. Tilting about the slow axis increases retardation, while tilting about the fast axis reduces retardation.
Технические характеристики
- Diameter 12.7 mm
- Thickness 1 mm
- Material Quartz
- Construction Single plate
- Wavelength Range 488 nm
- Retardation &lambda,/4
- Retardation Accuracy ±&lambda,/300 at 20°C ±1°C
- Damage Threshold 2 MW/cm2 CW, 2 J/cm2 with 10 nsec pulses
- Wavefront Distortion &le,&lambda,/10 at 632.8 nm over the full aperture
- Surface Quality 10-5 scratch-dig
- Reflectivity per Surface R
- Clear Aperture 11.4 mm
- Diameter Tolerance +0/-0.25 mm
- Wedge
- Cleaning See How to Clean Optics
