Strong Cavity-Optomechanical Transduction of Nanopillar Motion.

ABSTRACT: Nanomechanical resonators can serve as ultrasensitive, miniaturized force probes. While vertical structures such as nanopillars are ideal for this purpose, transducing their motion is challenging. Pillar-based photonic crystals (PhCs) offer a potential solution by integrating optical transduction within the pillars. However, achieving high-quality PhCs is hindered by inefficient vertical light confinement. Here, we present a full-silicon photonic crystal cavity based on nanopillars as a platform for applications in force sensing and biosensing areas. Its unit cell consists of a silicon pillar with a larger diameter at its top portion than at the bottom, which allows vertical light confinement and an energy band gap in the near-infrared range for transverse-magnetic polarization. We experim

SUBMITTER: Jaramillo-Fernandez J 

PROVIDER: S-EPMC11375771 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature