73 citations · 136 across the 11 of their papers we have counts for
13 papers
Extinction by non-spherical particles with the Nanoparticle Transition Matrix Code: perspectives for interstellar medium and exoplanetary atmospheres
G. La Mura, G. Mulas, M. A. Iatì +4
The Transition Matrix formalism (T-matrix) offers an optimal solution to the problem of radiation scattering and absorption by particles characterized by a high degree of chemical…
Nano-particle Transition Matrix code implementation
G. La Mura, G. Mulas, G. Aresu +4
Electromagnetic scattering and absorption by material particles is a fundamental physical problem with a broad range of applications, going from laboratory experiments, biology and…
Mode-dependent Emission Thresholds and Frequencies in Metal Nanoparticles within Gain-enhanced Media
Karen Caicedo, Nicole Recalde, Milena Mora +5
We present a mode-resolved analysis of emission thresholds in metal nanoparticles embedded within an infinite gain medium, using Mie scattering theory as a rigorous framework. Focu…
Interstellar dust as a dynamic environment
G. La Mura, G. Mulas, M. A. Iatì +3
In spite of accounting for only a small fraction of the mass of the Interstellar Medium (ISM), dust plays a primary role in many physical and chemical processes in the Universe. It…
Gain-Assisted Optomechanical Position Locking of Metal/Dielectric Nanoshells in Optical Potentials
Paolo Polimeno, Francesco Patti, Melissa Infusino +6
We investigate gain-assisted optical forces on dye-enriched silver nanoshell in the quasi-static limit by means of a theoretical/numerical approach. We demonstrate the onset of non…
Faster calculations of optical trapping using neural networks trained by T-matrix data: an application to micro and nanoplastics
Shadi Rezaei, David Bronte Ciriza, Abdollah Hassanzadeh +5
We employ neural networks to improve and speed up optical force calculations for dielectric particles. The network is first trained on a limited set of data obtained through accura…
Investigation of dust grains by optical tweezers for space applications
A. Magazzù, D. Bronte Ciriza, A. Musolino +10
Cosmic dust plays a dominant role in the universe, especially in the formation of stars and planetary systems. Furthermore, the surface of cosmic dust grains is the bench-work wher…
Faster and more accurate geometrical-optics optical force calculation using neural networks
David Bronte Ciriza, Alessandro Magazzù, Agnese Callegari +5
Optical forces are often calculated by discretizing the trapping light beam into a set of rays and using geometrical optics to compute the exchange of momentum. However, the number…
Superchiral Surface Waves for All-Optical Enantiomer Separation
Giovanni Pellegrini, Marco Finazzi, Michele Celebrano +4
We introduce the use of superchiral surface waves for the all-optical separation of chiral compounds. Using a combination of electrodynamics modeling and analytical techniques, we…
Electrospun Conjugated Polymer/Fullerene Hybrid Fibers: Photoactive Blends, Conductivity through Tunnelling-AFM, Light-Scattering, and Perspective for Their Use in Bulk-Heterojunction Organic Solar Cells
Zhenhua Yang, Maria Moffa, Ying Liu +10
Hybrid conjugated polymer/fullerene filaments based on MEH-PPV/PVP/PCBM are prepared by electrospinning, and their properties assessed by scanning electron, atomic and lateral forc…
Biomineral Amorphous Lasers through Light-Scattering Surfaces Assembled by Electrospun Fiber Templates
Maria Moffa, Andrea Camposeo, Vito Fasano +7
New materials aim at exploiting the great control of living organisms over molecular architectures and minerals. Optical biomimetics has been widely developed by microengineering,…
Brownian Motion of Graphene
O. M. Marago, F. Bonaccorso, R. Saija +9
We study the Brownian motion (BM) of optically trapped graphene flakes. These orient orthogonal to the light polarization, due to the optical constants anisotropy. We explain the f…
Rotational dynamics of optically trapped polymeric nanofibers
Antonio Alvaro Ranha Neves, Andrea Camposeo, Stefano Pagliara +7
The optical trapping of polymeric nanofibers and the characterization of the rotational dynamics are reported. A strategy to apply a torque to a polymer nanofiber, by tilting the t…