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Issue 6, 2010
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Highly localized non-linear optical white-light response at nanorod ends from non-resonant excitation

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Abstract

We investigate gold nanorods that are excited non-resonantly using a femtosecond 800 nm pulsed laser beam. We find that they emit very localized white light – two-photon induced photoluminescence (PL) – spatially confined in the optical far-field with a full-width-at-half-maximum of 138 nm (xy plane) and 328 nm (z-plane). The PL spectrum is characterized to show at least two components – a second-harmonic peak and an intrinsic gold interband transition.

Graphical abstract: Highly localized non-linear optical white-light response at nanorod ends from non-resonant excitation

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Publication details

The article was received on 14 Jan 2010, accepted on 09 Feb 2010 and first published on 06 May 2010


Article type: Paper
DOI: 10.1039/C0NR00025F
Citation: Nanoscale, 2010,2, 1018-1020
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    Highly localized non-linear optical white-light response at nanorod ends from non-resonant excitation

    M. D. Wissert, K. S. Ilin, M. Siegel, U. Lemmer and H. Eisler, Nanoscale, 2010, 2, 1018
    DOI: 10.1039/C0NR00025F

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