Cui, Xudong; Erni, Daniel:
Ultracompact surface plasmon polariton beam focusing with metal-coated nanoshell structures
In: Journal of Computational and Theoretical Nanoscience, Jg. 6 (2009), Heft 3, S. 744 - 748
2009Artikel/Aufsatz in Zeitschrift
Elektrotechnik
Titel:
Ultracompact surface plasmon polariton beam focusing with metal-coated nanoshell structures
Autor*in:
Cui, XudongUDE
LSF ID
49135
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Erni, DanielUDE
GND
1175897205
LSF ID
47126
ORCID
0000-0002-1467-6373ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
Erscheinungsjahr:
2009

Abstract:

In this paper, we report on beam focusing and on directing of surface plasmon polaritons (SPPs)with metal-coated nanoshell chain structures. Using nanoshells enhances the interaction between particles and leads to much higher field intensities in the focal point. Beam focusing has been realized over a wide wavelength range, due to the inherent large tuneablity of the plasmon resonance in the underlying nanoshells. The focusing device topologies proposed here are easy to adapt to long wavelength operations. Finally, a simplified metallic strip structure was proposed to explain the broadband characteristics of the chain structures as well as to compare and to verify its proper design.