Common · Knowledge
Kirchhoff's diffraction formula
Physics formula
Kirchhoff's diffraction formula (also called Fresnel–Kirchhoff diffraction formula) approximates light intensity and phase in optical diffraction: light fields in the boundary regions of shadows. The approximation can be used to model light propagation in a wide range of configurations, either analytically or using numerical modelling.
From Wikipedia
Kirchhoff's diffraction formula (also called Fresnel–Kirchhoff diffraction formula) approximates light intensity and phase in optical diffraction: light fields in the boundary regions of shadows. The approximation can be used to model light propagation 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 can be derived by the Fresnel–Kirchhoff diffraction formula.
Text: Wikipédia, CC BY-SA 4.0. ·
Related cards
-
★
Fresnel diffraction
Diffraction
-
★★★★
Kirchhoff's circuit laws
Relations between currents and voltages on sections of any electrical circuit
-
★★
Fresnel zone
Region of space involved in radio propagation between a transmitting and receiving antenna
-
S★
Scherrer equation
Formula in X-ray diffraction and crystallography
-
★★
Kirchhoff's law of thermal radiation
Law of wavelength-specific emission and absorption
-
★
LSZ reduction formula
Formula stating that S-matrix elements are residues of on-shell poles of the Fourier transform of time-ordered correlation functions