By incorporating this concept into SAW devices, the team developed a hydrogen sulfide (H 2 S) sensor with extraordinary sensitivity, rapid response, and resilience against environmental fluctuations.

The passive PT-symmetric model for SAW sensor. a The schematic diagram of the coupled resonators model and the real part of the eigenfrequency surfaces in the parameter space (ω1=ω2=ω0=0 ...

A research team from Huazhong University of Science and Technology has developed a novel surface acoustic wave (SAW) sensor based on a passive parity-time (PT) symmetric architecture. This design ...

They introduced a novel SAW sensor built around a passive parity-time (PT) symmetric architecture, enabling operation near EPs. This approach employed coupled resonators and a tin oxide (SnO 2 ...