Academic Journals Database
Disseminating quality controlled scientific knowledge

Dynamic light back-scattering with polarization gating and Fourier spatial filter for particle sizing in concentrated suspension

Author(s): Yang Hui | Zheng Gang | Dai Shu-guang | Zhang Ren-jie | Mu Ping-an

Journal: Optica Applicata
ISSN 0078-5466

Volume: 40;
Issue: 4;
Start page: 819;
Date: 2010;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: particle sizing | dynamic light scattering (DLS) | back-scattering | polarization gating | Fourier spatial filter

We present here a new dynamic light scattering method for investigating the particle size in concentrated suspension. By using the polarization gating and Fourier spatial filter, the optical thickness through the sample is reduced and the multiple scattered light is suppressed. The method is systematically tested using suspensions of latex spheres of 100 nm with a wide range of concentrations. Compared to the current common methods for nanoparticle sizing in concentrated suspension, it has the advantage of simple structure and it is easy to debug and maintain.
Affiliate Program     

Tango Rapperswil
Tango Rapperswil