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Kirchhoff's diffraction formula 基爾霍夫衍射公式 Fórmula de la difracción de Kirchhoff Théorie de Kirchhoff
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La théorie de Kirchhoff est une théorie de la diffraction qui permet, à l'aide du théorème de Green, de donner une formulation mathématique au principe de Huygens-Fresnel et de modéliser la propagation d'une onde à travers des ouvertures diffractantes. Elle a été introduite par le physicien Gustav Kirchhoff (1824-1887). La fórmula de la difracción de Kirchhoff​​ (también conocida como fórmula de la difracción de Fresnel-Kirchhoff)se puede usar para modelizar el fenómeno de la propagación de la luz en una amplia gama de configuraciones, ya sea analíticamente o usando modelos numéricos. Proporciona una expresión para la perturbación de una onda cuando una onda esférica monocroma pasa a través de una abertura en una pantalla opaca. La ecuación se deduce mediante varias aproximaciones al teorema integral de Kirchhoff que se vale del teorema de Green para calcular la solución de la ecuación de onda homogénea. Kirchhoff's diffraction formula (also Fresnel–Kirchhoff diffraction formula)can be used to model the propagation of light in a wide range of configurations, either analytically or using numerical modelling. It gives an expression for the wave disturbance when a monochromatic spherical wave is the incoming wave of a situation under consideration. This formula is derived by applying the Kirchhoff integral theorem, which uses the Green's second identity to derive the solution to the homogeneous scalar wave equation, to a spherical wave with some approximations. 在光學裏，菲涅耳-基爾霍夫衍射公式（Fresnel-Kirchoff's diffraction formula）可以應用於光波傳播的理論分析模型或數值分析模型。從菲涅耳-基爾霍夫衍射公式，可以推導出惠更斯－菲涅耳原理，並且解釋一些惠更斯－菲涅耳原理無法解釋的物理現象與結果。菲涅耳-基爾霍夫衍射公式常被稱為「基爾霍夫衍射公式」（Kirchoff's diffraction formula）。 從基爾霍夫積分定理，在假定一些近似之後，可以推導出菲涅耳-基爾霍夫衍射公式。
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La fórmula de la difracción de Kirchhoff​​ (también conocida como fórmula de la difracción de Fresnel-Kirchhoff)se puede usar para modelizar el fenómeno de la propagación de la luz en una amplia gama de configuraciones, ya sea analíticamente o usando modelos numéricos. Proporciona una expresión para la perturbación de una onda cuando una onda esférica monocroma pasa a través de una abertura en una pantalla opaca. La ecuación se deduce mediante varias aproximaciones al teorema integral de Kirchhoff que se vale del teorema de Green para calcular la solución de la ecuación de onda homogénea. 在光學裏，菲涅耳-基爾霍夫衍射公式（Fresnel-Kirchoff's diffraction formula）可以應用於光波傳播的理論分析模型或數值分析模型。從菲涅耳-基爾霍夫衍射公式，可以推導出惠更斯－菲涅耳原理，並且解釋一些惠更斯－菲涅耳原理無法解釋的物理現象與結果。菲涅耳-基爾霍夫衍射公式常被稱為「基爾霍夫衍射公式」（Kirchoff's diffraction formula）。 從基爾霍夫積分定理，在假定一些近似之後，可以推導出菲涅耳-基爾霍夫衍射公式。 La théorie de Kirchhoff est une théorie de la diffraction qui permet, à l'aide du théorème de Green, de donner une formulation mathématique au principe de Huygens-Fresnel et de modéliser la propagation d'une onde à travers des ouvertures diffractantes. Elle a été introduite par le physicien Gustav Kirchhoff (1824-1887). Kirchhoff's diffraction formula (also Fresnel–Kirchhoff diffraction formula)can be used to model the propagation of light in a wide range of configurations, either analytically or using numerical modelling. It gives an expression for the wave disturbance when a monochromatic spherical wave is the incoming wave of a situation under consideration. This formula is derived by applying the Kirchhoff integral theorem, which uses the Green's second identity to derive the solution to the homogeneous scalar wave equation, to a spherical wave with some approximations. The Huygens–Fresnel principle is derived by the Fresnel-Kirchhoff diffraction formula.
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