Journal article

Photonic properties of strongly correlated colloidal liquids

  • Rojas-Ochoa, Luis Fernando Soft Condensed Matter Group, Physics Department, University of Fribourg, Switzerland
  • Mendez-Alcaraz, J. M. Departamento de Física, CINVESTAV-IPN, Colonia San Pedro Zacatenco, México City, México
  • Sáenz, J. J. Departamento de Física de la Materia Condensada, and Instituto "Nicolás Cabrera," Universidad Autónoma de Madrid, Spain
  • Schurtenberger, Peter Soft Condensed Matter Group, Physics Department, University of Fribourg, Switzerland
  • Scheffold, Frank Soft Condensed Matter Group, Physics Department, University of Fribourg, Switzerland
Show more…
    13.08.2004
Published in:
  • Physical Review Letters. - 2004, vol. 93, no. 073903-73906
English The optical and structural properties of dense colloidal suspensions in the presence of long-range electrostatic repulsion are determined from both light and small-angle neutron scattering experiments. Short-range structural order induces an enhancement of the scattering strength while at the same time the total transmission shows strong wavelength dependence, reminiscent of a photonic crystal. Interestingly, the interplay between diffusive scattering and local order leads to negative values of the scattering anisotropy parameter. The tunable optical properties of these liquids furthermore suggest potential applications such as transparency switches or filters.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/299684
Statistics

Document views: 8 File downloads:
  • 1_schurt_pps.pdf: 1