Depolarized light scattering from colloidal gold nanoparticles

Krystyna Drozdowicz-Tomsia*, Fang Xie, Nils Calander, Ignacy Gryczynski, Karol Gryczynski, Ewa M. Goldys

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

We present a study of depolarized light scattering from gold nanoparticles of various shapes and heterodispersity in aqueous solutions. The light scattering anisotropy for particles with average aspect ratio ∼1.2 and above 1.5 was measured experimentally and modelled theoretically. For elongated particles the anisotropy reaches the minimum value of about 0.5 in the spectral region 550-750 nm and its position corresponds to the maximum of the scattering component in the extinction spectra. Our work demonstrates the potential to distinguish plasmonic scattering from gold nanoparticles from the background Rayleigh scattering that is important for applications in sensing and imaging in turbid media.

Original languageEnglish
Pages (from-to)69-74
Number of pages6
JournalChemical Physics Letters
Volume468
Issue number1-3
DOIs
Publication statusPublished - 13 Jan 2009

Fingerprint

Dive into the research topics of 'Depolarized light scattering from colloidal gold nanoparticles'. Together they form a unique fingerprint.

Cite this