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Optimal synthesis of three-dimensional complex amplitude distributions

机译:三维复振幅分布的最优综合

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The synthesis of three-dimensional (3-D) light distributions is important for many applications. For example, in scanning applications it is preferable that the scanning beam preserve its characteristics over a large distance to yield elongated scanning range. It is evident that any 3-D light distribution must satisfy the wave equation or, in second-order approximation, the Fresnel diffraction formula. Thus many desirable 3-D light distributions may not be realizable. We propose a single optical element (OE) that synthesizes a physical beam within a certain 3-D region. The OE provides the optimal physical beam in comparison with a desired one in the sense of minimal mean-square error.
机译:三维(3-D)配光的合成对于许多应用而言都很重要。例如,在扫描应用中,优选地,扫描光束在大距离上保持其特性以产生延长的扫描范围。显然,任何3-D光分布都必须满足波动方程或菲涅耳衍射公式(二阶近似)。因此,许多期望的3-D光分布可能无法实现。我们提出了在特定3-D区域内合成物理光束的单个光学元件(OE)。在最小均方误差的意义上,OE与所需光束相比提供了最佳的物理光束。

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