[HTML][HTML] An overview of the optical characterization of free microparticles and their radiative properties

MAC Potenza, L Cremonesi - Journal of Quantitative Spectroscopy and …, 2023 - Elsevier
We discuss how the range of information available from microparticle analysis can be
extended in a number of applications by measuring a specific set of optical properties of …

Fractal fronts of diffusion in microgravity

A Vailati, R Cerbino, S Mazzoni, CJ Takacs… - Nature …, 2011 - nature.com
Spatial scale invariance represents a remarkable feature of natural phenomena. A
ubiquitous example is represented by miscible liquid phases undergoing diffusion. Theory …

Heterodyne Near Field Speckles: from laser light to X-rays

M Siano, B Paroli, MAC Potenza - Advances in Physics: X, 2021 - Taylor & Francis
ABSTRACT A fascinating way of generating speckle patterns is by interfering the weak fields
scattered by a disordered sample with the intense trans-illuminating beam. The resulting …

Shape and size constraints on dust optical properties from the Dome C ice core, Antarctica

MAC Potenza, S Albani, B Delmonte, S Villa… - Scientific reports, 2016 - nature.com
Mineral dust aerosol (dust) is widely recognized as a fundamental component of the climate
system and is closely coupled with glacial-interglacial climate oscillations of the Quaternary …

Two-dimensional electron beam size measurements with x-ray heterodyne near field speckles

M Siano, B Paroli, MAC Potenza, L Teruzzi, U Iriso… - … Review Accelerators and …, 2022 - APS
In this paper we report on recent two-dimensional (2D) electron beam size measurements
with a nonconventional synchrotron radiation interferometric technique based on x-ray …

[HTML][HTML] Measuring the complex field scattered by single submicron particles

MAC Potenza, T Sanvito, A Pullia - Aip Advances, 2015 - pubs.aip.org
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 …

Colloidal aggregation in microgravity by critical Casimir forces

SJ Veen, O Antoniuk, B Weber, MAC Potenza… - Physical Review Letters, 2012 - APS
By using the critical Casimir force, we study the attractive strength dependent aggregation of
colloids with and without gravity by means of near field scattering. Significant differences …

Characterizing temporal coherence of visible synchrotron radiation with heterodyne near field speckles

M Siano, B Paroli, MAC Potenza, U Iriso… - … Review Accelerators and …, 2017 - APS
In this paper we extensively describe the heterodyne near field speckle method (HNFS) to
characterize both spatial and temporal coherence of synchrotron radiation (SR). The method …

Optical characterization of mineral dust from the EAIIST project with digital holography

C Ravasio, L Cremonesi, C Artoni… - ACS Earth and Space …, 2021 - ACS Publications
We describe an optical approach based on Digital Holography for single-particle
characterization of mineral dust and micrometric particles, focusing on the analysis of …

Speckle tweezers at fluid-fluid interface

R Jamali, SKP Velu, AR Moradi - arXiv preprint arXiv:2407.07571, 2024 - arxiv.org
Contemporary approaches to optical multiple micro-manipulation typically involve careful
pre-engineering of the laser beam shape. In various biomedical and microfluidic scenarios …