Microradian X-ray diffraction in colloidal photonic crystals

A V Petukhov, Job Thijssen, D C hart, Arnout Imhof, Alfons van Blaaderen, I P Dolbnya, A Snigirev, A Moussaid, I Snigireva

Research output: Contribution to journalArticlepeer-review

Abstract

Ultra-high-resolution small-angle X-ray scattering in various colloidal photonic crystals is reported. It is demonstrated that an angular resolution of about two microradians is readily achievable at a third-generation synchrotron source using compound refractive optics. The scheme allows fast acquisition of two-dimensional X-ray diffraction data and can be realised at sample-detector separations of only a few metres. As a result, diffraction measurements in colloidal crystals with interplanar spacings larger than a micrometre, as well as determination of the range of various order parameters from the width of the Bragg peaks, are made possible.

Original languageEnglish
Pages (from-to)137-144
Number of pages8
JournalJournal of Applied Crystallography
Volume39
Issue number2
DOIs
Publication statusPublished - Apr 2006

Keywords

  • COMPOUND REFRACTIVE LENS
  • HARD-SPHERE COLLOIDS
  • SINGLE-CRYSTALS
  • SCATTERING
  • PHASE
  • CRYSTALLIZATION
  • SUSPENSIONS
  • PARTICLES
  • KINETICS
  • BANDGAP

Cite this