M. A. C. Potenza

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

B. Paroli

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

M. Siano

University of Milan

Llorenç Cremonesi

University of Milano-Bicocca

Tiziano Sanvito

University of Milan

M. Giglio

University of Milan

Alessandra Andreoni

University of Pavia

M. D. Alaimo

University of Milan

Barbara Delmonte

University of Milano-Bicocca

S. Mazzoni

European Organization for Nuclear Research

A. Pullia

University of Milan

Cooperative Institutions

University of Milan

159

Istituto Nazionale di Fisica Nucleare, Sezione di Milano

100

Istituto Nazionale di Fisica Nucleare

University of Milano-Bicocca

Istituto Nazionale di Fisica Nucleare, Laboratori Acceleratori e Superconduttività Applicata

Centre National de la Recherche Scientifique

Politecnico di Milano

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

Istituto Nazionale per la Fisica della Materia

Sapienza University of Rome

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Procedure and device for the measurement of material properties by total internal reflection

Doriano Brogioli M. Giglio M. A. C. Potenza

Reflection

Source

Cite

Citations (0)

Refractive Index of Supercooled Water Down to 230.3 K in the Wavelength Range between 534 and 675 nm

The Journal of Physical Chemistry Letters (2022)

Claudia Goy Frédéric Caupin Michele Caresana Llorenç Cremonesi Anton Kalinin

Knowledge of the refractive index of water in the deeply supercooled metastable liquid state is important, for example, for an accurate description of optical reflection and refraction processes occurring in clouds. However, a measurement of both the temperature and wavelength dependence of the refractive index under such extreme conditions is challenging. Here, we employ Raman spectroscopy in combination with microscopic water jets in vacuum to obtain the refractive index of supercooled water to a lowest temperature of 230.3 K. While our approach is based on the analysis of Mie resonances in Raman spectra measured by using a single excitation wavelength at 532 nm, it allows us to obtain the refractive index in a wide visible wavelength range from 534 to 675 nm. Because of a direct link between the refractive index and density of water, our results provide a promising approach to help improve our understanding of water's anomalous behavior.

Supercooling

Metastability

10.1021/acs.jpclett.2c02803

Cite

Citations (4)

Evidence of Sub‐Micrometric Plastic Release When Heating Food Containers Based on Light Scattering Measurements

Particle & Particle Systems Characterization (2024)

Marco Pallavera Tiziano Sanvito Llorenç Cremonesi Claudio Artoni Andrea Falqui

Abstract A growing body of literature is raising concerns about the spread of nano‐ and microplastics and the hazards they pose to the environment and on human health. There is still a limited understanding of their sources and formation mechanisms, making their release and uptake difficult to track and quantify. Among the obstacles to the progress in this field there is the lack of reliable methods for quantitative studies, leading to a potential underestimation of the extent of their release and the related risks. In this paper, the application of an optical method for studying the release of sub‐micrometric plastics in water by polypropylene containers certified for alimentary use is described. The results show evidence of negligible release when the temperature of the water is kept below the manufacturer's specifications, whereas a rampant increase occurs beyond these conditions, irrespective of the thermal history of the sample. Particles with a diameter distribution that spans one order of magnitude are observed, ranging from ≈200 nm to 2 µm, and their refractive index and shape is characterized with light scattering measurements. This work focuses on particle release and does not assess toxicity or effects on living organisms.

10.1002/ppsc.202400029

Cite

Citations (0)

On the optical properties of mineral dust in ice-cores as revealed by light scattering techniques

Llorenç Cremonesi Barbara Delmonte Claudia Ravasio Claudio Artoni M. A. C. Potenza

<p>There is much information to be derived from the airborne dust that can be found in ice cores, especially about the aerosol composition and sources, including the characteristics of the atmosphere of several thousands of years ago. There is, in fact, much still to learn about both the data that can be retrieved and how to interpret them with appropriate models. One of the most striking aspects of these tiny particles is the effect their shape alone has on their scattering and absorption properties, which translate into a contribution to the Earth radiative transfer, especially at the wavelength scale. We show that aggregates of several particles behave differently from compact particles, and non-isometric compact particles can be clearly distinguished from isometric particles as their non-sphericity increases. We report the advances in this direction based on light scattering measurements on the dust content of ice cores drilled from Dome C and Dome B in Antarctica as part of the EPICA project, and provide a physical interpretation in terms of the known models in the field of light scattering by small particles.</p>

Dome (geology)

Ice core

Mineral dust

10.5194/egusphere-egu22-12517

Cite

Citations (0)

Confocal Depolarized Dynamic Light Scattering: a Novel Technique for the Characterization of Nanoparticles in Complex Fluids

M. A. C. Potenza Tiziano Sanvito Federico Mariani Peter G. Vekilov Dominique Maes

Dispersity

Characterization

Particle (ecology)

Cite

Citations (0)

Coherence properties and diagnostics of betatron radiation emitted by an externally-injected electron beam propagating in a plasma channel

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2015)

B. Paroli E. Chiadroni M. Ferrario A. Mostacci V. Petrillo

Betatron

Coherence time

Plasma acceleration

10.1016/j.nimb.2015.03.070

Cite

Citations (14)

Free nanoparticle characterization by optical scattered field analysis: opportunities and perspectives

Journal of Nanoparticle Research (2014)

M. A. C. Potenza Paolo Milani

Characterization

10.1007/s11051-014-2680-z

Cite

Citations (19)

On the quasi-universality of the forward light scattering lobe for micrometric objects

Journal of Quantitative Spectroscopy and Radiative Transfer (2021)

M. A. C. Potenza Llorenç Cremonesi

Extinction (optical mineralogy)

10.1016/j.jqsrt.2021.108028

Cite

Citations (3)

EFFECT OF THE SOLAR MODULATION AT MINIMUM ACTIVITY ON EXPECTED RATIO OF ANTIPROTON TO PROTON FLUX

G. Boella M. Gervasi M. A. C. Potenza P.G. Rancoita Ilya Usoskin

Antiproton

Modulation (music)

10.1142/9789814447263_0032

Cite

Citations (1)

Near field scattering

Physical Chemistry Chemical Physics (2004)

M. Giglio Doriano Brogiol M. A. C. Potenza Alberto Vailati

We present a series of novel, unconventional optical techniques that are capable of performing measurements of low and ultra-low angle scattered light, and are therefore of potential interest for colloid physics and complex fluids in general. These techniques determine the angular intensity distribution through a spatial frequency spectral analysis of the signal recorded in the near field of the scattered light. Experimental results and a comparative discussion of these techniques are presented.

Light Field

SIGNAL (programming language)

Intensity

Spectral power distribution

10.1039/b314600f

Cite

Citations (17)