Excitation power dependence of lifetime of photoluminescence from gold film in the Kretschmann geometry

Tomonori Sanbongi, Satoshi Katano, Jamal Uddin Ahamed, Yoichi Uehara, Sukekatsu Ushioda

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

We have investigated picosecond-laser-pulse-excited photoluminescence (PL) from an evaporated gold film in the Kretschmann geometry. The total intensity of PL was proportional to the square of continuous wave equivalent laser power for excitation, showing that PL is excited via two-photon optical processes. The lifetime of PL was directly determined as a function of excitation laser power by use of a streak camera. We found that the lifetime is inversely proportional to excitation laser power, indicating that the lifetime of d-band holes created by the two-photon optical processes is inversely proportional to their density.

Original languageEnglish
Article number012011
JournalJournal of Physics: Conference Series
Volume235
Issue number1
DOIs
Publication statusPublished - 2010
EventInternational Workshop on Electronic Spectroscopy for Gas-phase Molecules and Solid Surfaces, IWES2009 - Matsushima, Japan
Duration: 2009 Oct 122009 Oct 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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