Polarizability and magnetoplasmonic properties of magnetic general nanoellipsoids
Year: 2013
Type: article
Abstract: An approach to compute the polarizability tensor of magnetic nanoparticles having general ellipsoidal shape is presented. We find a surprisingly excellent quantitative agreement between calculated and experimental magneto-optical spectra measured in the polar Kerr configuration from nickel nanodisks of large size (exceeding 100 nm) with circular and elliptical shape. In spite of its approximations and simplicity, the formalism presented here captures the essential physics of the interplay between magneto-optical activity and the plasmonic resonance of the individual particle. The results highlight the key role of the dynamic depolarization effects to account for the magneto-optical properties of plasmonic nanostructures.
Source: Optics Express
DOI: 10.1364/oe.21.009875
Institutions: CIC nanoGUNE, SLAC National Accelerator Laboratory, Stanford University, Aalto University, Institució Catalana de Recerca i Estudis Avançats, Universitat Autònoma de Barcelona, Institute of Molecular Science and Technologies, National Interuniversity Consortium of Materials Science and Technology, Chalmers University of Technology, KTH Royal Institute of Technology
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W2018200281