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Fluorescence excitation by enhanced plasmon upconversion under continuous wave illumination
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Date
2016-09-01
Author
Taşgın, Mehmet Emre
Salakhutdinov, Ildar
Kendziora, Dania
Abak, Musa Kurtuluş
Turkpence, Deniz
Piantanida, Luca
Fruk, Ljiljana
Lazzarino, Marco
Bek, Alpan
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We demonstrate effective background-free continuous wave nonlinear optical excitation of molecules that are sandwiched between asymmetrically constructed plasmonic gold nanoparticle clusters. We observe that near infrared photons are converted to visible photons through efficient plasmonic second harmonic generation. Our theoretical model and simulations demonstrate that Fano resonances may be responsible for being able to observe nonlinear conversion using a continuous wave light source. We show that nonlinearity enhancement of plasmonic nanostructures via coupled quantum mechanical oscillators such as molecules can be several orders larger as compared to their classical counterparts.
Subject Keywords
Hardware and Architecture
,
Electrical and Electronic Engineering
,
Atomic and Molecular Physics, and Optics
,
Electronic, Optical and Magnetic Materials
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/35117
Journal
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
DOI
https://doi.org/10.1016/j.photonics.2016.06.001
Collections
Department of Physics, Article