论文标题
通过膜耦合等离子纳米捕获天线与集成量子发射器通过膜耦合的等离子纳米族天线增强
Second-Harmonic Generation Enhancement by Film-Coupled Plasmonic Nanopatch Antennas With Integrated Quantum Emitters
论文作者
论文摘要
事实证明，等离子体纳米腔是一个强大的光学平台，可在长度比衍射极限小得多的长度限制范围内限制光。在空腔模式体积内增强的电磁场可实现多种显着效应，从而导致在线性和非线性光学方案中应用。在这项工作中，我们展示了通过使用亚氧化锌氧化锌间隔层从光滑的金膜中将银纳米纸从光滑的金膜中分离出来的单个等离子纳米曲奇天线的第二次谐波产生。当纳米捕获天线以其基本等离子频率激发时，观察到第二次谐波生成波的强度增加了10^4倍。此外，通过集成在基本频率下具有吸收能的量子发射器，可以观察到二阶非线性激子 - 孔子强耦合响应，而RABI分裂能量为19 MeV。因此，使用Nanopatch天线的非线性频率转换为非线性控制弱和强耦合方案的非线性控制提供了一个绝佳的平台，这些平台将具有光学工程和信息处理中应用的巨大潜力。
Plasmonic nanocavities have proven to be a powerful optical platform for confining light at a length scale much smaller than the diffraction limit. Enhanced electromagnetic fields within the cavity mode volume enable multiple significant effects that lead to applications in both the linear and nonlinear optical regimes. In this work, we demonstrate enhanced second harmonic generation from individual plasmonic nanopatch antennas which are formed by separating silver nanocubes from a smooth gold film using a sub-10 nm zinc oxide spacer layer. When the nanopatch antennas are excited at their fundamental plasmon frequency, a 10^4-fold increase in the intensity of the second harmonic generation wave is observed. Moreover, by integrating quantum emitters that have an absorption energy at the fundamental frequency, a second order nonlinear exciton-polariton strong coupling response is observed with a Rabi splitting energy of 19 meV. The nonlinear frequency conversion using nanopatch antennas thus provides an excellent platform for nonlinear control of the light-matter interactions in both weak and strong coupling regimes which will have a great potential for applications in optical engineering and information processing.
