Two-photon photoluminescence (TPPL) from gold nanostructures is becoming one of the most relevant tools for plasmon-assisted biological imaging and photothermal therapy as well as for the investigation of plasmonic devices. Here we study the yield of TPPL as a function of the temporal width δ of the excitation laser pulses for a fixed average power. In the δ>1 ps regime, the TPPL yield decreases as δ is increased, while for shorter pulse widths it becomes independent of δ and, consequently, of the laser-pulse peak power. This peculiar dynamics is understood and modeled by considering that two-photon absorption in Au is a two-step process governed by the lifetime of the metastable state populated by the first photon absorption.
APS Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\ŁG824FSB\\PhysRevB.80.html:text/html;Biagioni et al. - 2009 - Dependence of the two-photon photoluminescence yie.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\URUK6C65\\Biagioni et al. - 2009 - Dependence of the two-photon photoluminescence yie.pdf:application/pdf
%0 Journal Article
%1 biagioni2009dependence
%A Biagioni, Paolo
%A Celebrano, Michele
%A Savoini, Matteo
%A Grancini, Giulia
%A Brida, Daniele
%A Mátéfi-Tempfli, Stefan
%A Mátéfi-Tempfli, M.
%A Duò, Lamberto
%A Hecht, Bert
%A Cerullo, Giulio
%A Finazzi, Marco
%D 2009
%J Phys. Rev. B
%K TPPL experiment gold nano-optics
%N 4
%P 045411
%R 10.1103/PhysRevB.80.045411
%T Dependence of the two-photon photoluminescence yield of gold nanostructures on the laser pulse duration
%V 80
%X Two-photon photoluminescence (TPPL) from gold nanostructures is becoming one of the most relevant tools for plasmon-assisted biological imaging and photothermal therapy as well as for the investigation of plasmonic devices. Here we study the yield of TPPL as a function of the temporal width δ of the excitation laser pulses for a fixed average power. In the δ>1 ps regime, the TPPL yield decreases as δ is increased, while for shorter pulse widths it becomes independent of δ and, consequently, of the laser-pulse peak power. This peculiar dynamics is understood and modeled by considering that two-photon absorption in Au is a two-step process governed by the lifetime of the metastable state populated by the first photon absorption.
@article{biagioni2009dependence,
abstract = {Two-photon photoluminescence (TPPL) from gold nanostructures is becoming one of the most relevant tools for plasmon-assisted biological imaging and photothermal therapy as well as for the investigation of plasmonic devices. Here we study the yield of TPPL as a function of the temporal width δ of the excitation laser pulses for a fixed average power. In the δ>1 ps regime, the TPPL yield decreases as δ is increased, while for shorter pulse widths it becomes independent of δ and, consequently, of the laser-pulse peak power. This peculiar dynamics is understood and modeled by considering that two-photon absorption in Au is a two-step process governed by the lifetime of the metastable state populated by the first photon absorption.},
added-at = {2020-02-21T10:31:41.000+0100},
author = {Biagioni, Paolo and Celebrano, Michele and Savoini, Matteo and Grancini, Giulia and Brida, Daniele and Mátéfi-Tempfli, Stefan and Mátéfi-Tempfli, M. and Duò, Lamberto and Hecht, Bert and Cerullo, Giulio and Finazzi, Marco},
biburl = {https://www.bibsonomy.org/bibtex/2527c95376481c5decd1fb03cf83a2f1d/ep5optics},
day = 14,
doi = {10.1103/PhysRevB.80.045411},
file = {APS Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\LG824FSB\\PhysRevB.80.html:text/html;Biagioni et al. - 2009 - Dependence of the two-photon photoluminescence yie.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\URUK6C65\\Biagioni et al. - 2009 - Dependence of the two-photon photoluminescence yie.pdf:application/pdf},
interhash = {d87597025b08351dff9eb5420ab5df15},
intrahash = {527c95376481c5decd1fb03cf83a2f1d},
journal = {Phys. Rev. B},
keywords = {TPPL experiment gold nano-optics},
month = {07},
number = 4,
pages = 045411,
timestamp = {2020-02-21T10:31:41.000+0100},
title = {Dependence of the two-photon photoluminescence yield of gold nanostructures on the laser pulse duration},
urldate = {2020-02-21},
volume = 80,
year = 2009
}