WGM Resonators Get Sensitivity and Portability Boost for In-Field Use
TUCSON, Ariz., May 28, 2024 — The high sensitivity, rapid response, and label-free nature of whispering gallery mode (WGM) resonators enable many biochemical applications, such as early diagnostics and prognostics, food and water quality inspection, chemical threat sensing, and early detection of hazardous gases. The WGM microtoroid resonator is one of the most sensitive biochemical sensors in existence, capable of detecting single molecules. The primary barrier to commercializing this sensor for field work is the