Simple angle-resolved light scattering photometer using a photodiode array

V. Grasso; F. Neri; E. Fucile

doi:10.1117/12.221081

20 September 1995 Simple angle-resolved light scattering photometer using a photodiode array

V. Grasso, F. Neri, E. Fucile

Author Affiliations +

Proceedings Volume 2506, Air Pollution and Visibility Measurements; (1995) https://doi.org/10.1117/12.221081
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

A simple light scattering photometer has been developed for measuring the angular distribution of the intensity of polarized laser light scattered by micro- and sub-micron samples. The photometer uses an ellipsoidal reflector and simple optical components to collect the He-Ne laser scattered light and to focus it onto a 512 element photodiode array. Although the technique is inherently a static one, it is possible to monitor relatively slow kinetics at a rate of 25 ms per sampling period. Experimental data have been obtained for several monodisperse aqueous solutions of latex spheres of different sizes. The results have been satisfactorily interpreted on the basis of the Mie theory with suitable geometrical corrections.

Citation Download Citation

V. Grasso, F. Neri, and E. Fucile "Simple angle-resolved light scattering photometer using a photodiode array", Proc. SPIE 2506, Air Pollution and Visibility Measurements, (20 September 1995); doi: 10.1117/12.221081; https://doi.org/10.1117/12.221081

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