Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2004),
  • paper IFC2
  • https://doi.org/10.1364/IQEC.2004.IFC2

Self-Similar Chain of Metal Nanospheres as Efficient Nanolens

Not Accessible

Your library or personal account may give you access

Abstract

As an efficient nanolens, we propose a self-similar linear chain of several metal nanospheres with progressively decreasing sizes and separations. To describe such systems, we develop the multipole spectral expansion method. Optically excited, such a nanolens develops the nanofocus (“hottest spot”) in the gap between the smallest nanospheres, where the local fields are enhanced by orders of magnitude due to multiplicative, cascade effect of its geometry and high $Q$-factor of surface plasmon resonance. The spectral maximum of the enhancement is in the near-ultraviolet, shifting toward the red as the separation between the spheres decreases. The proposed system can be used for nanooptical detection, Raman characterization, nonlinear spectroscopy, nano-manipulation of single molecules or nanoparticles, and other applications.

© 2004 Optical Society of America

PDF Article
More Like This
Surface Plasmons in Ordered and Disordered Chains of Metal Nanospheres

Vadim A. Markel and Andery K. Sarychev
QThE4 Quantum Electronics and Laser Science Conference (CLEO:FS) 2007

Quantum-size effects in surface-enhanced Raman scattering from noble-metal nanoparticles

V. N. Pustovit and T. V. Shahbazyan
IWA26 International Quantum Electronics Conference (IQEC) 2004

Metallic nanolens for color imaging

Prabhat Verma, Atsushi Ono, and Satoshi Kawata
MMA3 Plasmonics and Metamaterials (META) 2008

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved