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Preparation and performance of phase retarder at the wavelength of 1315nm

机译:波长为1315nm的相位延迟器的制备及性能

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摘要

The periodic dielectric phase retarders that produce a ±90° phase shift between the p- and s- polarization components at the incident angle of 54° and the wavelength of 1315nm while maintaining high reflectivity for both components are designed. An optimization technique has been used to determine the layer thickness for a coating design that produce a 270±1° phase shift between the p- and s- polarization components over 1285-1345nm while the average reflectivity is over 99.5%. Then the designed retarders were prepared by ion beam sputtering (IBS), and the phase shift was 262.4 ± 1.8°and the reflectivity was over 99.6% at the design waveband.
机译:设计了周期性介电相位延迟器,该相位介电相位延迟器在p和s偏振分量之间以54°入射角和1315nm波长产生±90°相移,同时保持两个分量的高反射率。已经使用一种优化技术来确定涂层设计的层厚度,该涂层设计在1285-1345nm的p和s偏振分量之间产生270±1°的相移,而平均反射率超过99.5%。然后通过离子束溅射(IBS)制备了设计的延迟器,在设计波段,相移为262.4±1.8°,反射率超过99.6%。

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