TY - JOUR A1 - Henneberg, Oliver A1 - Pietsch, Ullrich A1 - Panzner, Tobias A1 - Geue, Thomas A1 - Finkelstein, Kenneth D. T1 - Simultaneous X-ray and visible light diffraction for the investigation of surface relief and density grating formation in azobenzene containing polymer films N2 - The development of surface relief and density patterns in azobenzene polymer films was studied by diffraction at two different wavelengths. We used x-ray diffraction of synchrotron radiation at 0.124 nm in combination with visible light diffraction at a wavelength of 633 nm. In contrast to visible light scattering x-ray diffraction allows the separation of a surface relief and a density grating contribution due to the different functional dependence of the scattering power. Additionally, the x-ray probe is most sensitive for the onset of the surface grating formation Y1 - 2006 UR - http://www.informaworld.com/smpp/title~content=t713644168~db=all U6 - https://doi.org/10.1080/15421400500383345 SN - 1542-1406 ER -