Theoretical description of nonlinear optical scattering processes from single particles and collections of particles

• Antragstellerin: Professorin Dr. Sylvie Roke
• Fachliche Zuordnung: Theoretische Physik der kondensierten Materie
• Förderung: Förderung von 2008 bis 2013
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 92874245

• Erstellungsjahr: 2012

Zusammenfassung der Projektergebnisse

The research project has lead to an increased understanding of nonlinear optical scattering effects. A key milestone was the development of an exact description of nonlinear light scattering from spherical particles. From this exact description, it was possible to extend the theory to various areas that are relevant to the understanding of nonlinear light scattering phenomena in increasingly complex systems. Theoretical developments allowed the determination of molecular orientation on the surface of particle in suspension, the separating of surface effects and charge effects, and the simulation of light scattering patterns from particles of arbitrary shape and size. New theoretical developments were directly applied to the study of soft matter systems, and led to new insights in the fields of polymer science, emulsion science and the field of biological soft matter.

Projektbezogene Publikationen (Auswahl)

• Detection of buried microstructures by nonlinear light scattering spectroscopy, Phys. Rev. Lett. 102 (9), 95502
  AGF de Beer, HB de Aguiar, JF Nijsen, S Roke
  
• Nonlinear Mie theory for second-harmonic and sum-frequency scattering, Phys. Rev. B 79 (15), 155420
  AGF de Beer, S Roke
  
• Obtaining molecular orientation from second harmonic and sum frequency scattering experiments in water: Angular distribution and polarization dependence, J. Chem. Phys. 132, 234702
  AGF de Beer, S Roke
  
• Separating surface structure and surface charge with second-harmonic and sum-frequency scattering, Phys. Rev. B 82, 235431
  AGF de Beer, RK Campen, S Roke
  
• The orientation and charge of water at the hydrophobic oil droplet-water interface, J. Am. Chem. Soc. 133(26), 10204-10
  R Vacha, SW Rick, P Jungwirth, AGF de Beer, HB de Aguiar, JS Samson, S Roke
  
• Theory of optical second-harmonic and sum-frequency scattering from arbitrarily shaped particles, JOSA B 28 (6), 1374-1384
  AGF de Beer, S Roke, JI Dadap
  
• Comparison of scattering and reflection SFG: a question of phase-matching, Phys. Chem. Chem. Phys. 14 (19), 6826-6832
  HB de Aguiar, R Scheu, KC Jena, AGF de Beer, S Roke
  (Siehe online unter https://doi.org/10.1039/c2cp40324b)