Polychromatic nanofocusing of surface plasmons

Author

Liu, Wei ; Neshev, Dragomir N. ; Miroshnichenko, Andrey E. ; Shadrivov, Ilya V. ; Kivshar, Yuri S.

Author_Institution

Nonlinear Phys. Centre, Australian Nat. Univ., Canberra, ACT, Australia

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

In this work the authors introduce the concept of polychromatic plasmonics, and demonstrate the functionalities of a broadband plasmonic lens based on metal-dielectric-metal (MDM) structures. The authors utilize quadratic variation of the dielectric layer in the transverse direction to produce a parabolic optical potential which is practically wavelength independent. Nanofocusing of this lens is demonstrated over a bandwidth exceeding an optical octave (>;500nm) thus allowing a variety of effects for polychromatic plasmon nanofocusing.

Keywords

dielectric materials; microlenses; optical self-focusing; plasmonics; surface plasmons; broadband plasmonic lens; dielectric layer; metal-dielectric-metal structures; optical octave; parabolic optical potential; polychromatic nanofocusing; polychromatic plasmonics; quadratic variation; surface plasmons; transverse direction; Finite difference methods; Lenses; Nonlinear optics; Optical pulses; Optical signal processing; Optical waveguides; Plasmons;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5943631

Filename

5943631