Excitation Nature of Two-Photon Photoluminescence of Gold Nanorods and Coupled Gold Nanoparticles Studied by Two-Pulse Emission Modulation Spectroscopy.

Abstract

Gold nanorods (Au NRs) and coupled gold nanospheres (Au NSs) are known to display strong two-photon photoluminescence (TPPL). Here two-pulse emission modulation (TPEM) and pump-probe measurements were performed on Au NRs and coupled Au NSs to understand their excitation mechanisms. The TPEM cross contributions of Au NRs and coupled Au NSs showed much slower… (More)
DOI: 10.1021/jz400582h

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