Wave vector
A wave vector is a
vector that specifies the
wavenumber and direction of propagation for a wave. The magnitude of the wave vector indicates the
wavenumber. The orientation of the wave vector indicates the direction of wave propagation. For example consider a plane wave. A common representation of the oscillation at time (t) and a single point in space (z) along the direction of propagation is: where A is the amplitude, φ is the starting phase of the wave, k is the angular
wavenumber, and ω is the
angular frequency. We can easily extend the formula by substituting the
dot product of the wave vector k and the position vector r for the scalar product of the
wavenumber k and the variable z as follows:.
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Vecteur d'onde
Wellenvektor
Der Wellenvektor wird mit bezeichnet. Dieser zeigt in die Ausbreitungsrichtung einer
WelleMit den Komponenten in x-, y- und z-Richtung
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Wektor falowy
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