Localized differential heterodyne dynamic light scattering system

Li-Dek Chou; Li-Ping Yu; Chien Chou

doi:10.1117/12.2036669

10 March 2014 Localized differential heterodyne dynamic light scattering system

Li-Dek Chou, Li-Ping Yu, Chien Chou

Proceedings Volume 8952, Biomedical Applications of Light Scattering VIII; 895203 (2014) https://doi.org/10.1117/12.2036669
Event: SPIE BiOS, 2014, San Francisco, California, United States

Abstract

A novel two-frequency dynamic light scattering system (TF-DLS) and differential heterodyne en face laser Doppler velocimeter (LDV) are proposed and setup. The power spectrum of the heterodyne beat signal is detected whereas the width of power spectrum and shift of central frequency are measured simultaneously. These are able to provide the particle sizing and its tangential velocity in suspension. Finally, the localization ability of TF-DLS/LDV system on en face velocity measurement was discussed.

Citation Download Citation

Li-Dek Chou, Li-Ping Yu, and Chien Chou "Localized differential heterodyne dynamic light scattering system", Proc. SPIE 8952, Biomedical Applications of Light Scattering VIII, 895203 (10 March 2014); https://doi.org/10.1117/12.2036669

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