论文标题
高Q等离子晶体激光器，用于超敏感的生物分子检测
High-Q plasmonic crystal laser for ultra-sensitive biomolecule detection
论文作者
论文摘要
等离子激光器为纳米级的相干光生成范式提供了改变范式的方法。除了相干辐射的通常特性外，等离激光的发射还可以具有对周围环境的高灵敏度，这使得这项技术对开发高性能和高度整合的传感设备有吸引力。在这里，我们研究了基于高Q等离子晶体的等离激光架构，该晶体由纳米骨的定期排列在薄金膜上定期排列，该薄膜被有机型掺杂的Sio $ _2 $增益层作为增益材料。我们报告了对该设备的激光性能及其作为生物化学传感器的应用的广泛的全波数值分析，表明所提出的设计具有出色的表面传感功绩，即原则上可以比以前报道的高强度等离子体的BioSentor架构大量的数量级。
Plasmonic lasers provide a paradigm-changing approach for the generation of coherent light at the nanoscale. In addition to the usual properties of coherent radiation, the emission of plasmonic lasers can feature high sensitivity to the surrounding environment, which makes this technology attractive for developing high-performance and highly-integrated sensing devices. Here, we investigate a plasmonic laser architecture based on a high-Q plasmonic crystal consisting of a periodic arrangement of nanoholes on a thin gold film cladded with an organic-dye-doped SiO$_2$ gain layer as the gain material. We report an extensive full-wave numerical analysis of the device's lasing performance and its application as a biochemical sensor, showing that the proposed design features excellent figures of merit for surface sensing that in principle can be over an order of magnitude larger than those of previously reported high-performance plasmonic biosensor architectures.
