caa a22 4500 378939572 CHVBK 20180305123649.0 cr unu---uuuuu 161128e20040401xx s 000 0 eng 10.1524/zkri.219.4.218.30438 doi (NATIONALLICENCE)gruyter-10.1524/zkri.219.4.218.30438 X-ray and VIS light scattering from light-induced polymer gratings [Elektronische Daten] [Oliver Henneberg, Tobias Panzner, Ullrich Pietsch, Thomas Geue, Marina Saphiannikova, Paul Rochon, Ken Finkelstein] Sinusoidally shaped surface relief gratings made of polymer films containing azobenzene moieties can be created by holographic illumination with laser light of about λ ≈ 500 nm. The remarkable material transport takes place at temperatures far (100 K) below the glass transition temperature of the material. As probed by visible light scattering the efficiency of grating formation crucially depends on the polarization state of the laser light and is maximal when circular polarization is used. In contrast to VIS light scattering X-ray diffraction is most sensitive for periodic surface undulations with amplitudes below 10 nm. Thus, combined in-situ X-ray and visible light scattering at CHESS were used to investigate the dynamics of surface relief grating formations upon laser illumination. The time development of grating peaks up to 9th order at laser power of P = 20 mW/cm2 could be investigated, even the onset of grating formation as a function of light polarization. A linear growth of grating amplitude was observed for all polarizations. The growth velocity is maximal using circularly polarized light but very small for s-polarized light. © 2004 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Henneberg Oliver aut Panzner Tobias aut Pietsch Ullrich aut Geue Thomas aut Saphiannikova Marina aut Rochon Paul aut Finkelstein Ken aut Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/4(2004-04-01), 218-223 2194-4946 219:4<218 2004 219 zkri https://doi.org/10.1524/zkri.219.4.218.30438 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.219.4.218.30438 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Henneberg Oliver aut NATIONALLICENCE 700 1- Panzner Tobias aut NATIONALLICENCE 700 1- Pietsch Ullrich aut NATIONALLICENCE 700 1- Geue Thomas aut NATIONALLICENCE 700 1- Saphiannikova Marina aut NATIONALLICENCE 700 1- Rochon Paul aut NATIONALLICENCE 700 1- Finkelstein Ken aut NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 219/4(2004-04-01), 218-223 2194-4946 219:4<218 2004 219 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter