论文标题
用硅纳米 - 安妮纳斯（Nano-Antennas
Enhancement of molecular coherent anti-Stokes Raman scattering with silicon nano-antennas
论文作者
论文摘要
表面增强的相干反stokes拉曼散射（SE-CARS）利用了在金属纳米结构上支持的表面等离子体共振，以扩大靶分子的相干拉曼反应。尽管这些金属天线在SE-CARS研究中发现了巨大的成功，但在超快激发下，光诱导的纳米反丹纳的形态变化在稳定性和重核方面引入了重大障碍。这些障碍需要克服，以建立SE-CARS作为快速生物分子传感的可靠工具。在这里，我们通过通过具有更有利的热性能的高折射率介电颗粒制成的纳米antennas进行了分子汽车测量来解决这一挑战。我们介绍了在Si Nano-Antennas观察到的增强分子汽车信号的第一个实验证明，与金属同行相比，该信号的热稳定性大大提高。
Surface-enhanced coherent anti-Stokes Raman scattering (SE-CARS) takes advantage of surface plasmon resonances supported on metallic nanostructures to amplify the coherent Raman response of target molecules. While these metallic antennas have found significant success in SE-CARS studies, photo-induced morphological changes to the nanoantenna under ultrafast excitation introduce significant hurdles in terms of stability and reproducilibty. These hurdles need to be overcome in order to establish SE-CARS as a reliable tool for rapid biomolecular sensing. Here we address this challenge by performing molecular CARS measurements enhanced by nanoantennas made from high-index dielectric particles with more favorable thermal properties. We present the first experimental demonstration of enhanced molecular CARS signals observed at Si nano-antennas, which offer much improved thermal stability compared to their metallic counterparts.
