acoustotreams.AcousticMaterial.kzst

AcousticMaterial.kzst(k0, kx, ky)

The z-component of the wave vector for transverse waves.

The z-component of the wave vector is defined by \(k_z = \sqrt(k^2 - k_x^2 - k_y^2)\). The returned values have non-negative imaginary parts.

Parameters:

• k0 (float) – Wave number in air.

• kx (float, array-like) – x-component of the wave vector

• ky (float, array-like) – y-component of the wave vector

Returns:

complex, array-like