Toward Full Spatio-Temporal Control on the Nanoscale

Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
Nano Letters (Impact Factor: 13.59). 11/2007; 7(10):3145-9. DOI: 10.1021/nl071718g
Source: PubMed

ABSTRACT We introduce an approach to implement full coherent control on nanometer
length scales. It is based on spatio-temporal modulation of the surface plasmon
polariton (SPP) fields at the thick edge of a nanowedge. The SPP wavepackets
propagating toward the sharp edge of this nanowedge are compressed and
adiabatically concentrated at a nanofocus, forming an ultrashort pulse of local
fields. The one-dimensional spatial profile and temporal waveform of this pulse
are completely coherently controlled.

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