Work

Measuring the complex field scattered by single submicron particles

Year: 2015

Type: article

Abstract: We describe a method for simultaneous measurements of the real and imaginary parts of the field scattered by single nanoparticles illuminated by a laser beam, exploiting a self-reference interferometric scheme relying on the fundamentals of the Optical Theorem. Results obtained with calibrated spheres of different materials are compared to the expected values obtained through a simplified analytical model without any free parameters, and the method is applied to a highly polydisperse water suspension of Poly(D,L-lactide-co-glycolide) nanoparticles. Advantages with respect to existing methods and possible applications are discussed.

Source: AIP Advances

DOI: 10.1063/1.4935927

Authors: Marco A. C. Potenza, Tiziano Sanvito, Alberto Pullia

Institution: University of Milan

Language: English

Topic: Optical measurement and interference techniques

Subfield: Computer Vision and Pattern Recognition

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,350

Funder: European Regional Development Fund