Application of Circularly Polarized Plasmon Resonance Modes to All-Optical Magnetic Recording

Author

Mayergoyz, Isaak ; Zhang, Zhenyu ; McAvoy, Patrick ; Bowen, David ; Krafft, Charles

Author_Institution

Electr. Eng. & Comput. Dept. & UMIACS, Univ. of Maryland, College Park, MD

Volume

44

Issue

11

fYear

2008

Firstpage

3372

Lastpage

3375

Abstract

The numerical study of circularly polarized plasmon resonance modes in metallic nanoparticles with uniaxial symmetry is reported. These plasmon modes provide optical means for nanoscale focusing of circularly polarized light. For this reason, these modes are promising for all-optical magnetization reversals of nanoscale spots of magnetic recording media. A general theoretical approach to the analysis of circularly polarized plasmon modes is presented and then applied to two specific designs of silver nano-rings and spherical nanoshells on dielectric substrates.

Keywords

integral equations; light polarisation; magnetic recording; magnetisation; nanoparticles; surface plasmon resonance; all-optical magnetic recording; all-optical magnetization; circularly polarized plasmon resonance modes; dielectric substrates; integral equation; metallic nanoparticles; silver nanorings; spherical nanoshells; uniaxial symmetry; Integral equation; magnetic recording; nanoparticle; plasmon resonances;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2008.2002390

Filename

4717816