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Proceedings Paper

Coherent control of ultrafast nanoscale localization of optical excitation energy
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Paper Abstract

We predict and theoretically investigate the unique possibility to control distribution of ultrafast local optical fields in metallic nanosystems in space with nanometer resolution and in time on the femtosecond scale. While the spatial degrees of freedom of the optical radiation do not allow focusing of light on nanoscale, the temporal degrees of freedom, i.e., phases of excitation femtosecond pulses, are quite efficient functional degrees of freedom that permit one to coherently control the distribution of the energy of local fields, concentrating it at a desired location at certain times. We study both a specially designed V-shape nanostructure and a random planar nanocomposite. Several types of exciting pulses are investigated, which has allowed us to distinguish effects of phase modulation and spectral composition of the excitation pulse. Possible applications of this effect include energy supply and control of ultrafast optical computations in nanostructures, local optical probing of nanosystems, including nanosensors of chemical and biological agents, and nanomodification of surfaces (nano-lithography).

Paper Details

Date Published: 28 October 2003
PDF: 15 pages
Proc. SPIE 5221, Plasmonics: Metallic Nanostructures and Their Optical Properties, (28 October 2003); doi: 10.1117/12.508522
Show Author Affiliations
Mark I. Stockman, Georgia State Univ. (United States)
David J. Bergman, Tel Aviv Univ. (Israel)
Takayoshi Kobayashi, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 5221:
Plasmonics: Metallic Nanostructures and Their Optical Properties
Naomi J. Halas, Editor(s)

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