In metal nanostructures under illumination, multiple different processes can drive current flow, and in an open- circuit configuration some of these processes lead to the production of open-circuit photovoltages. Structures that have plasmonic resonances at the illumination wavelength can have enhanced photovoltage response, due to both increased interactions with the incident radiation field, and processes made possible through the dynamics of the plasmon excitations themselves. Here we review photovoltage response driven by thermoelectric effects in continuous metal nanowires and photovoltage response driven by hot electron production and tunneling. We discuss the prospects for enhancing and quantifying hot electron generation and response via the combination of local plasmonic resonances and propagating surface plasmon polaritons.
Seeing inside a Plasmonic Nanogap: Few-molecule Orientation and Preferential Adsorption
Ecole Polytechnique Fédérale de Lausanne (EPFL)(洛桑联邦理工学院);Center for Quantum Science and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)(洛桑联邦理工学院量子科学与工程中心)
Planar chiral nanoantenna for excitation-chirality-controlled hot spot modulation and emitter-coupled circularly polarized emission
Friedrich Schiller University Jena(耶拿弗里德里希·席勒大学);Abbe Center of Photonics, Friedrich Schiller University Jena(耶拿弗里德里希·席勒大学阿贝光学中心);Leibniz Institute of Photonic Technology(莱布尼茨光子技术研究所);University of Würzburg(维尔茨堡大学);The Australian National University(澳大利亚国立大学);Academia Sinica(中央研究院);National Yang Ming Chiao Tung University(国立阳明交通大学)
Investigating Analyte Co-Localization at Electromagnetic Gap Hot-Spots For Highly Sensitive (Bio)molecular Detection by Plasmon Enhanced Spectroscopies