Experimental validation of the vectorial complex ray model on the inter-caustics scattering of oblate droplets

We report the first experimental validation of the Vectorial Complex Ray Model (VCRM) using the scattering patterns of large oblate droplets trapped in an acoustic field. The two principal radii and refractive index of the droplets are retrieved with a minimization method that involves VCRM predicti...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2015-06, Vol.23 (12), p.15768-15773
Main Authors: Onofri, Fabrice R A, Ren, Kuan Fang, Sentis, Matthias, Gaubert, Quentin, Pelcé, Chantal
Format: Article
Language:English
Subjects:
Acoustics
Mechanics
Physics
Thermics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report the first experimental validation of the Vectorial Complex Ray Model (VCRM) using the scattering patterns of large oblate droplets trapped in an acoustic field. The two principal radii and refractive index of the droplets are retrieved with a minimization method that involves VCRM predictions and experimental light scattering patterns. The latter are recorded in the droplet equatorial plane between the primary rainbow region and the associated hyperbolic-umbilic diffraction catastrophe. The results demonstrate that the VCRM can predict the fine and coarse stuctures of scattering patterns with good precision, opening up perspectives for the characterization of large non-spherical particles.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.015768