Séminaire de Pei-Ling LUO

Pei-Ling LUO de Institute of Atomic and Molecular Sciences, Taipei

Applications of high-resolution time-resolved dual-comb spectroscopy: from fundamental chemical physics to atmospheric chemistry

Abstract:

Mid-infrared time-resolved spectroscopy with adequate sensitivity and spectral resolution provides great opportunity to investigate transient free radicals and reaction intermediates. Dual-comb spectroscopy, a multi-heterodyne Fourier transform spectroscopy based on two frequency combs at slightly different repetition rates, enables broadband molecular fingerprinting with high-resolution and fast spectral acquisition. Here, a unique approach to kinetic and product studies of the gas-phase reactions using mid-infrared time-resolved dual-comb spectroscopy will be reported. In our recent works, in addition to determination of the rate constants of some key reactions in the atmosphere, we also investigated their reaction products to explore the atmospheric implications.