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Dresden 2014 – wissenschaftliches Programm

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AGjDPG: Arbeitsgruppe junge DPG

AGjDPG 2: PhD Symposium: Magnon Plasmonics (jointly with MA)

AGjDPG 2.6: Vortrag

Dienstag, 1. April 2014, 12:00–12:15, HSZ 04

Control of light emission with magneto-optical particles — •Nuno de Sousa1, Luis S. Froufe-Perez2, and Antonio Garcia-Martin31Dept. Fisica de la Materia Condensada, Universidad Autonoma de Madrid, E-28049 Madrid, Spain — 2Instituto de Estructura de la Materia, CSIC, Serrano 121, E-28006 Madrid, Spain — 3IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Issac Newton 8, PTM, E-28760 Tres Cantos, Madrid, Spain

The possibility of creating and manipulate nanostructured materials encouraged the exploration of new strategies to control the electromagnetic properties with an external agent. A possible approach is combining magnetic and plasmonic materials, where it is feasible control the optical properties with magnetic fields.

In this presentation we will show a fundamental study of the properties of an emitter in two different situations: in the presence of a single magneto-optical nanoparticle and inside of a cavity formed by two magneto-optical nanoparticles. We analyze the dependence of the decay rate and the field patterns in the presence and absence of the magnetic field.

In the first case we show that the decay rate of an emitter is invariant in respect to the out-of-diagonal elements of the polarizability tensor, although the field patterns of the system can be modified.

In the second case we study the modification of the emission pattern considering the coupling between particles. Like in the previous situation, we also explore the modifications of the decay rate dependence as well as the field patterns.

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