Parts-per-Trillion-Level Methane Detection Based on Light-Induced Thermoelastic Spectroscopy with Extended Optical Path Absorption
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This paper describes a highly sensitive methane (CH4) sensor utilizing light-induced thermoelastic spectroscopy (LITES), which incorporates a multipass cell (MPC) with a dense spot configuration and a self-designed round-tip quartz tuning fork (QTF). The desig... ...
