Characterization of dielectric spheres by spiral imaging

Dmitri Petrov*, Nicolas Rahuel, Gabriel Molina-Terriza, Lluis Torner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)
10 Downloads (Pure)


We study the spiral spectra scattered off transparent dielectric spheres when probed by different Laguerre-Gaussian light beams, carrying nested topological wavefront dislocations. We show that such scattering data may be employed to determine geometrical properties of the spheres, such as their position. The technique is a generalization of standard Mie scattering, and it can be extended to study and to characterize nanospheres.

Original languageEnglish
Pages (from-to)869-871
Number of pages3
JournalOptics Letters
Issue number5
Publication statusPublished - 1 Mar 2012

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


Dive into the research topics of 'Characterization of dielectric spheres by spiral imaging'. Together they form a unique fingerprint.

Cite this