The proposed research aims to investigate both experimentally and theoretically the quantum tunneling enhanced optical harmonic generation in rationally designed plasmonic junctions. The main objectives of the project are: 1. To achieve precise control over the tunneling barrier width of plasmonic nano-junctions; 2. To reveal the quantum size effect in plasmon resonance evolution and harmonic signal enhancement; 3. To investigate the electron-tunneling-modifed near-field properties and local density of optical states; 4. To make comparative analysis of experimental results with a nonlinear quantum-corrected model and other models reported so far to distinguish the range of validity and limitations of these models; 5. To combine experimental far- and near-field characterization results and theoretical calculations to unravel the physical origin of quantum tunneling enhanced optical harmonic generation and provide experimental feedback to quantum plasmonics theory development.
Monsieur Yannick DE WILDE (Institut Langevin Ondes et Images)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
CityU City University of Hong Kong / Department of Materials Science & Engineering
Institut Langevin Institut Langevin Ondes et Images
Help of the ANR 600,388 euros
Beginning and duration of the scientific project: - 48 Months