论文标题
Ultrastrong等离子体phonon耦合通过Epsilon-Near-Zero纳米腔
Ultrastrong plasmon-phonon coupling via epsilon-near-zero nanocavities
论文作者
论文摘要
振动超晶体耦合（USC），其中光耦合强度与分子的振动频率相当，为探测分子与零点波动的相互作用，线束增强化学反应的新机会，并在中传奇方面开发新型手段。在这里，我们使用含有模型极性介质（SIO $ _2 $）填充的Epsilon-Near-Zero纳米腔来演示声子和间隙等离子体之间的USC。我们提出了经典和量子机械模型，以定量描述观察到的等离子 - phonon USC现象，并证明了多达50％的谐振频率的分裂。我们的晶圆尺度纳米腔平台将使多种振动过渡能够用于USC应用程序。
Vibrational ultrastrong coupling (USC), where the light-matter coupling strength is comparable to the vibrational frequency of molecules, presents new opportunities to probe the interactions of molecules with zero-point fluctuations, harness cavity-enhanced chemical reactions, and develop novel devices in the mid-infrared regime. Here we use epsilon-near-zero nanocavities filled with a model polar medium (SiO$_2$) to demonstrate USC between phonons and gap plasmons. We present classical and quantum mechanical models to quantitatively describe the observed plasmon-phonon USC phenomena and demonstrate a splitting of up to 50% of the resonant frequency. Our wafer-scale nanocavity platform will enable a broad range of vibrational transitions to be harnessed for USC applications.
