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RESEARCH PRODUCT
Optical Field-Induced Mass Transport in Soft Materials
Mara ReinfeldeJanis TeterisU. GertnersJ Aleksejevasubject
chemistry.chemical_classificationMaterials sciencebusiness.industryChalcogenideHolographic recordingPolymerOptical fieldSurface relief gratingsPhysics and Astronomy(all)Polarization (waves)Molecular physicsAmorphous solidchemistry.chemical_compoundCondensed Matter::Materials ScienceOpticschemistryAmorphous chalcogenide filmsAzo-dye polymersPolarizabilityCondensed Matter::SuperconductivityLight beambusinessAnisotropydescription
Abstract The dependence of the surface relief formation in amorphous chalcogenide (As 2 S 3 and As-S-Se) and Disperse Red 1 dye grafted polyurethane polymer films on the polarization state of holographic recording light beams was studied. It is shown that the direction of lateral mass transport on the film surface is determined by the direction of light electric vector and photoinduced anisotropy in the film. We propose a photoinduced dielectropfhoretic model to explain the photoinduced mass transport in amorphous films. Model is based on the photoinduced softening of the matrix, formation of defects with enhanced or decreased polarizability, and their drift under the electrical field gradient of light.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 | Physics Procedia |