High-speed and high-sensitivity multi-gas detection based on parallel heterodyne LITES sensor
Peer-Reviewed Publication
Updates every hour. Last Updated: 25-Oct-2026 05:16 ET (25-Oct-2026 09:16 GMT/UTC)
This work presents the first demonstration of a parallel heterodyne light-induced thermoelastic spectroscopy (PH-LITES) sensor for high-speed and high-sensitivity simultaneous multi-gas detection. By synergistically combining signal enhancement at the physical layer with intelligent decoupling at the information layer, the sensor achieves ppb-level simultaneous and fast multi-gas detection based on a single quartz tuning fork (QTF), providing an important reference for the future development of rapid and highly sensitive multi-gas sensing technologies.
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