Phase control of plasmon enhanced two-photon photoluminescence in resonant gold nanoantennas
Journal article, 2018

Plasmonic nanoantennas emit two-photon photoluminescence, which is much stronger than their second harmonic generation. Unfortunately, luminescence is an incoherent process and therefore generally not explored for nanoscale coherent control of the antenna response. Here, we demonstrate that, in resonant gold nanoantennas, the two-photon absorption process can be coherent, provided that the excitation pulse duration is shorter than the dephasing time of plasmon mode oscillation. Exploiting this coherent response, we show the pure spectral phase control of resonant gold nanoantennas, with effective read-out of the two-photon photoluminescence.

Author

Vikas Remesh

Barcelona Institute of Science and Technology (BIST)

Michael Stührenberg

Chalmers, Biology and Biological Engineering, Chemical Biology

Lisa Saemisch

Barcelona Institute of Science and Technology (BIST)

Nicolò Accanto

Barcelona Institute of Science and Technology (BIST)

Paris Descartes University

Niek F. Van Hulst

Institucio Catalana de Recerca I Estudis Avancats

Barcelona Institute of Science and Technology (BIST)

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 113 21 211101

Subject Categories

Atom and Molecular Physics and Optics

Other Physics Topics

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1063/1.5051381

More information

Latest update

1/17/2019