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Wavelength-compensated Fourier and Fresnel transformers: a unified approach

机译:波长补偿傅立叶和菲涅耳变压器:统一方法

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摘要

We recognize that one can adapt any dispersion-compensated broadband optical Fourier transformer to achieve wavelength compensation in the Fresnel diffraction region just by inserting a diffractive lens at the input plane and vice versa. This unification procedure is employed in a second stage in the design of a novel hybrid (diffractive-refractive) optical setup that provides, in a sequential way, nearly wavelength-independent Fresnel diffraction patterns in the irradiance of the object transmittance.
机译:我们认识到,只需在输入平面插入一个衍射透镜,就可以使任何经色散补偿的宽带光学傅立叶转换器适应菲涅尔衍射区域的波长,反之亦然。在新的混合(衍射-折射)光学装置的设计的第二阶段中采用了这种统一程序,该光学装置以顺序的方式在物体透射率的照射下提供了几乎与波长无关的菲涅耳衍射图。

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