Phase-dependent polarization aspects of three-wave X-ray diffraction: an iterative Born approximation

• Published in: Acta crystallographica. Section A, Foundations of crystallography Vol. 60; no. 1; pp. 64 - 74
• Main Authors: Stetsko, Yuri P., Lee, Yen-Ru, Tang, Mau-Tsu, Chang, Shih-Lin
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England Munksgaard International Publishers 01.01.2004; Blackwell
• Subjects: Born approximation; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Physics; polarization; Structure of solids and liquids; crystallography; Theories of diffraction and scattering; three-wave X-ray diffraction; X-ray diffraction and scattering; Reflectivity; Polarization; Gallium arsenides; Inorganic compounds; Asymmetry; Theoretical study; Binary compounds; Silicon; XRD; Iterative methods; Born approximation; III-V semiconductors
• ISSN: 0108-7673; 1600-5724
• DOI: 10.1107/S0108767303025017

The iterative Born approximation is derived for three‐wave dynamical X‐ray diffraction. Dependence of the three‐wave diffraction profiles of the diffracted wave on the polarization state of a linearly polarized incident wave is theoretically and experimentally investigated. General conditions of the phase sensitivity as well as the asymmetry of diffraction profiles are obtained from this approximation and compared with direct dynamical calculations. Reasonable qualitative agreement between the results obtained from this iterative approach and the exact dynamical calculation is shown. A new feature of reversing asymmetry of an intensity profile with respect to phase change is theoretically predicted.