Optical properties of X-rays – dynamical diffractionThis Laue centennial article has also been published in Zeitschrift für Kristallographie [Authier (2012). Z. Kristallogr. 227, 36–51].

Authier, A.

doi:10.1107/S0108767311040219

Figure 17
Propagation of wavefields in a crystal. Left: reciprocal space. $[{\bf s_o}]$ : normal to the crystal surface; P₁, P₂: tiepoints of the two waves excited in the crystal; $[{\bf S_1}]$ , $[{\bf S_2}]$ : Poynting vectors. Right: Borrmann fan in direct space. After Borrmann (1959a