论文标题
周期性金属谐振链，用于表面增强的拉曼散射（SER）
Periodic metal resonator chains for Surface Enhanced Raman Scattering (SERS)
论文作者
论文摘要
金盘链的周期性排列显示出明显的等离子光栅共振。这些对4-甲基苯甲醇分子的表面增强的拉曼散射（SERS）的信号具有明显影响，这些分子在金表面上形成自组装的单层：除了清晰的极化依赖性外，SERS-Spectra除了在激发激光波长与plamonic Gramonic Gramonic Graming Grating Resonance匹配时，还表现出最大值。这些特征是通过单个等离子偶极子的近外和远场耦合来解释的，该偶极允许设计优化的纳米结构以实现有效的SERS-SUBSTRATES。
A periodic arrangement of chains of gold discs shows pronounced plasmonic grating resonances. These have a clear impact on the Surface Enhanced Raman Scattering (SERS)-signal from 4-methylbenzenethiol molecules which form self-assembled monolayers on the gold surface: Besides a clear polarisation dependence the SERS-spectra also exhibit a maximum when the excitation laser wavelength matches the plamonic grating resonance. These features are explained by a combined near and far field coupling of the individual plasmonic dipoles allowing the design of optimized nanostructures for effective SERS-substrates in the future.
