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Measurement of the full complex degree of coherence using Fresnel diffraction from a phase discontinuity

机译:使用菲涅耳衍射从相位不连续的菲涅耳衍射测量全复杂的相干程度

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摘要

A field-portable, single-shot and very simple method is presented for measuring the full complex degree of coherence (CDC) of a quasi-monochromatic Schell-model field using the Fresnel diffraction from a phase discontinuity. To validate the proposed technique, the CDC of the light emitted from an incoherent source with variable size is investigated. The results are in excellent agreement with theoretical predictions of the Van Cittert-Zernike theorem. This technique is also applicable to characterize the coherence properties of sources in other spectral regions, e.g., x-rays. (C) 2020 Optical Society of America
机译:提供现场便携式,单次和非常简单的方法,用于测量使用来自相位不连续的菲涅耳衍射来测量准单色Schell-Model领域的全复杂相干程度(CDC)。 为了验证所提出的技术,研究了从具有可变大小的非相干源发出的光的CDC。 结果与van Cittert-Zernike定理的理论预测结果非常一致。 该技术也适用于表征其他光谱区域中的源的相干性能,例如X射线。 (c)2020美国光学学会

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