High-$Q$ Plasmonic Crystal Laser for Ultra-Sensitive Biomolecule Detection

Plasmonic lasers provide a paradigm-changing approach for the generation of coherent light at nanoscale. In addition to usual properties radiation, emission plasmonic can feature high sensitivity surrounding environment, which makes this technology attractive developing high-performance and highly-integrated sensing devices. Here, we investigate laser architecture based on high- $Q$ crystal consisting periodic arrangement nanoholes thin gold film cladded with an organic-dye-doped glass layer as gain material. We report extensive full-wave numerical analysis device's lasing performance its application biochemical sensor, showing that proposed design features excellent figures merit surface in principle be over order magnitude larger than those previously reported biosensor architectures.