Optofluidic analyte detection system using multimode interference waveguide

摘要

Disclosed herein are systems, methods, and techniques for optofluidic analyte detection and analysis using multimode interference (MMI) waveguides. In some embodiments, spatial and spectral multiplex photodetection of particles is performed on an optofluidic platform that includes multiple analyte channels that intersect one MMI waveguide. In some embodiments, a multi-stage photonic structure including a first stage MMI waveguide for demultiplexing optical signals by spatially demultiplexing light of different wavelengths from each other is also implemented. Good. In some embodiments, the second stage uses a single mode waveguide and / or an MMI waveguide to create a multi-spot pattern using the demultiplexed spatially separated light emitted from the first stage. You may. In some embodiments, a tunable liquid core MMI (LC-MMI) by replacing the liquid core, heating / cooling the liquid core, and / or deforming the LC-MMI to change its width. ) The waveguide may be implemented in one or more of the analyte detection / analysis systems disclosed herein.