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Diffraction-grating-type phase converters for conversion of Hermite-Laguerre-Gaussian mode into Gaussian mode

机译:用于将Hermite-Laguerre-Gaussian模式转换为Gaussian模式的衍射光栅型相位转换器

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摘要

Diffraction gratings that can be used to convert the Hermite-Laguerre-Gaussian (HLG) mode into the Gaussian mode were obtained; these modes are space modes of light beams. The HLG mode is intermediate between the Hermite-Gaussian and the Laguerre-Gaussian modes. Generally, gratings produced from interfering two beams as holograms contain information of not only the phase modulation factor but also the amplitude modulation factor. Thus, they cannot be expected to provide high conversion efficiency. To produce high-efficiency gratings, the interference equation is divided into two factors. The gratings produced by considering only the phase factors act as phase converters.
机译:获得了可用于将埃尔米特-拉格勒-高斯(HLG)模式转换为高斯模式的衍射光栅;这些模式是光束的空间模式。 HLG模式介于Hermite-Gaussian模式和Laguerre-Gaussian模式之间。通常,由干涉两个光束作为全息图产生的光栅不仅包含相位调制因子的信息,而且包含振幅调制因子的信息。因此,不能期望它们提供高的转换效率。为了生产高效光栅,将干涉方程式分为两个因素。仅考虑相位因子而产生的光栅用作相位转换器。

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