Compositional-asymmetry influenced non-linear optical processes of plasmonic nanoparticle dimers
文献信息
Anke Horneber, Anne-Laure Baudrion, Pierre-Michel Adam, Alfred J. Meixner, Dai Zhang
The influences of compositional asymmetry on the two-photon photoluminescence and the second harmonic generation processes in weakly coupled plasmonic dimers were addressed. Au–Au homodimer and Au–Ag heterodimer arrays produced using electron-beam lithography were investigated using confocal nonlinear optical imaging and spectroscopy. Compared to the Au–Au homodimers, the Au–Ag dimers showed slightly broadened two-photon photoluminescence near the X symmetry point at the first Brillouin zone of Au, whilst that from the L symmetry point stayed the same. Additionally, weakly coupled Au–Ag heterodimers generated strong second harmonic signals which were invisible in the Au–Au homodimers. The observations highlighted the importance of compositional asymmetry in the non-linear optical studies of plasmonic dimers.
期刊推荐

Science

Planta Medica

Journal of Physics and Chemistry of Solids

Organic Preparations and Procedures International

Journal of Heterocyclic Chemistry

Russian Chemical Reviews

Proceedings of the National Academy of Sciences of the United States of America

Fibre Chemistry

Journal of Catalysis

Pure and Applied Chemistry
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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