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25 February 2009 Coherent anti-Stokes generation from single nanostructures
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Dual color four-wave-mixing is used to visualize individual gold nanowires and single carbon nanotubes. The strong nonlinear signals, which are detected at the anti-Stokes frequency, originate from the electronic response of the nanostructures. In gold nanowires, the collective electron motions produce detectable coherent anti-Stokes signals that can be used to study the orientation and relative strength of the structure's plasmon resonances. In single walled carbon nanotubes, coherent anti-Stokes contrast can be used to map the orientation of the electronic resonances in single tubes. Coherent anti-Stokes imaging of the material's electronic response allows the first close-ups of the coherent nonlinear properties of individual structures and molecules.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hyunmin Kim, Tatyana Sheps, David K. Taggart, Philip G. Collins, Reginald M. Penner, and Eric O. Potma "Coherent anti-Stokes generation from single nanostructures", Proc. SPIE 7183, Multiphoton Microscopy in the Biomedical Sciences IX, 718312 (25 February 2009);

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