RT Journal Article
T1 The Polarizability Vector: A Polarimetric Observable for Characterizing Anisotropic Nanoparticles
A1 Olmos Trigo, Jorge
AB The optical properties of anisotropic nanoparticles (NPs) are often characterized by two principal components of their polarizability tensor. However, measuring them can be demanding as the phase of the scattered field needs to be detected. To address this challenge, I reveal a novel observable, the polarizability vector, for characterizing the optical response of anisotropic NPs from a single-angle Stokes vector measurement. As I show, knowledge of  grants access to pivotal nanophotonics quantities, including the scattering cross-section, optical recoil torque, and near-field amplitude. I further generalize the approach to randomly dispersed NPs, showing that, though defined at the single-particle level, fully captures their optical response. My findings pave the way for the optical characterization of anisotropic NPs using standard polarimetric instrumentation.
PB Wiley
YR 2025
FD 2025-11
LK https://hdl.handle.net/20.500.14352/128237
UL https://hdl.handle.net/20.500.14352/128237
LA eng
NO Olmos‐Trigo, Jorge. «The Polarizability Vector: A Polarimetric Observable for Characterizing Anisotropic Nanoparticles». Laser & Photonics Reviews, noviembre de 2025, p. e01632. DOI.org (Crossref), https://doi.org/10.1002/lpor.202501632.
NO Ministerio de Ciencia e Innovación (España)
NO Ramon y Cajal
NO La Caixa Foundation
DS Docta Complutense
RD 1 dic 2025