Issue 6, 2010
From the journal:

Nanoscale

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

Matthias D. Wissert,a   Konstantin S. Ilin,b   Michael Siegel,b   Uli Lemmerc  and  Hans-Jürgen Eisler*a  

* Corresponding authors

a Lichttechnisches Institut (LTI), DFG Heisenberg Group ‘Nanoscale Science’, Karlsruher Institut für Technologie – KIT, Germany
E-mail: hans.eisler@lti.uni-karlsruhe.de

b Institut für Mikro und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technologie – KIT, Germany

c Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie – KIT, Germany

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 (x–y 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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Article information

DOI
https://doi.org/10.1039/C0NR00025F
Article type
Paper
Submitted
14 Jan 2010
Accepted
09 Feb 2010
First published
06 May 2010

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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