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Phys Rev Lett. 2002 Feb 11;88(6):067402. Epub 2002 Jan 24.

Coherent control of femtosecond energy localization in nanosystems.

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  • 1Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA. mstockman@gsu.edu


We predict and quantitatively evaluate the unique possibility of concentrating the energy of an ultrafast excitation of a nanosystem in a small part of the whole system by means of coherent control (phase modulation of the exciting ultrashort pulse). Such concentration is due to dynamic properties of surface plasmons and leads to local fields enhanced by orders of magnitude. This effect exists for both "engineered" and random nanosystems. We also discuss possible applications.

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