Publication: Fluorescence excitation by enhanced plasmon upconversion under continuous wave illumination
Program
KU-Authors
KU Authors
Co-Authors
Taşgın, Mehmet Emre
Salakhutdinov, Ildar
Kendziora, Dania
Abak, Musa Kurtulus
Piantanida, Luca
Fruk, Ljiljana
Lazzarino, Marco
Bek, Alpan
Advisor
Publication Date
2016
Language
English
Type
Journal Article
Journal Title
Journal ISSN
Volume Title
Abstract
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.
Description
Source:
Photonics and Nanostructures-Fundamentals and Applications
Publisher:
Elsevier
Keywords:
Subject
Nanoscience, Nanotechnology, Materials sciences, Multidisciplinary design optimization, Optics, Physics