Circular Magnetoplasmonic Modes in Gold Nanoparticles

• Published in: Nano letters Vol. 13; no. 10; pp. 4785 - 4789
• Main Authors: Pineider, Francesco, Campo, Giulio, Bonanni, Valentina, de Julián Fernández, César, Mattei, Giovanni, Caneschi, Andrea, Gatteschi, Dante, Sangregorio, Claudio
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 09.10.2013
• Subjects: Biosensing Techniques; Circular Dichroism; Circularity; Collective excitations (including excitons, polarons, plasmons and other charge-density excitations); Colloids - chemistry; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Exact sciences and technology; Gold; Gold - chemistry; Magnetic Fields; Magnetic resonance; Materials science; Metal Nanoparticles - chemistry; Nanocrystalline materials; Nanoparticles; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Physics; Plasmonics; Plasmons; Refractometry; Slopes; Surface and interface electron states; sensing; magneto optics; Active plasmonics; magnetoplasmonics; gold nanoparticles; Nanoparticles; Gold; Refractive index; Optical properties; Magnetic circular dichroism; Plasmons; Surface plasmon resonance; Nanostructured materials; Implementation

The quest for efficient ways of modulating localized surface plasmon resonance is one of the frontiers in current research in plasmonics; the use of a magnetic field as a source of modulation is among the most promising candidates for active plasmonics. Here we report the observation of magnetoplasm...