Photoluminescence from gold nanoplates induced by near-field two-photon absorption

Kohei Imura*, Tetsuhiko Nagahara, Hiromi Okamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)


We have investigated two-photon-induced photoluminescence (PL) properties of single gold nanoplates by using an apertured scanning near-field optical microscope. The nanoplates show PL much stronger than nanorods. The near-field PL images show characteristic spatial features, which depend on the incident polarization. These PL images are in good agreement with the calculated spatial distribution of the electric fields adjacent to the particles at the excitation wavelength. We attribute the observed images to spatial characteristics of plasmon modes.

Original languageEnglish
Article number023104
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number2
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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