混合等离激元腔中实现SERS的单分子强光力学 regime
Single-molecule strong optomechanical regimes in SERS via hybrid plasmonic cavities
浏览论文内容
中文总结 AI 辅助
该研究利用混合等离激元腔实现单分子强光力学 regime，通过特定模式照射观测到SERS光谱增强分裂，计算二阶光子关联以表征非经典特性，为SERS领域提供了新的光力学调控方案。
中文摘要 AI 辅助
我们发现，混合金属-介质腔与共振荧光分子相结合，可实现增强的强相干表面增强拉曼散射（SERS）相互作用。通过利用窄带混合等离激元模式照射接近饱和的失谐电子跃迁，我们在远低于不可逆SERS损伤阈值的强度下，观测到斯托克斯和反斯托克斯光谱中出现增强的分裂，揭示了强光力学耦合以及非线性振动调制。我们计算了二阶光子关联，该关联可识别与这些强光力学相互作用相关的非经典特性，以及能够通过光学表征振动模式非谐特性的SERS配置。
英文摘要
We identify enhanced strong coherent Surface-Enhanced Raman Scattering (SERS) interactions facilitated by hybridized metallo-dielectric cavities with a resonant fluorescent molecule. By illuminating a detuned electronic transition near saturation via a narrowband hybrid plasmonic mode, we observe enhanced splittings in the Stokes and anti-Stokes spectra, revealing strong optomechanical coupling and nonlinear vibrational modifications at intensities far below irreversible SERS damage thresholds. We compute the second-order photon correlations that allows identifying the nonclassical character associated to these strong optomechanical interactions and SERS configurations that enables them to optically characterize the anharmonic character of the vibrational modes.
