Abstract

An experimental setup for measuring scattering matrices of various kinds of small particles is described. By using polarization modulation eight scattering-matrix elements, six of which are independent (or four in the case of spheres), can be obtained from four separate measurements. Test results for water droplets are presented as well as preliminary results for irregularly shaped quartz (SiO₂) particles with an effective radius of ∼15 μm. Four inequalities yielding conditions for combinations of scattering-matrix elements were used for checking all the results presented.

© 1991 Optical Society of America

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