中国物理B ›› 2022, Vol. 31 ›› Issue (9): 97801-097801.doi: 10.1088/1674-1056/ac6b28
Xiao-Dong Huang(黄晓东)1, Meng Zhang(张梦)1, Lun-Hua Deng(邓伦华)1,†, Shan-Biao Pang(庞山彪)1, Ke Liu(刘珂)1, and Huai-Liang Xu(徐淮良)1,2,3,‡
Xiao-Dong Huang(黄晓东)1, Meng Zhang(张梦)1, Lun-Hua Deng(邓伦华)1,†, Shan-Biao Pang(庞山彪)1, Ke Liu(刘珂)1, and Huai-Liang Xu(徐淮良)1,2,3,‡
摘要: It is proved that the chemical reaction induced by femtosecond laser filament in the atmosphere produces CO, HCN, and NO, and the production CO and HCN are observed for the first time. The concentrations of the products are measured by mid-infrared tunable laser absorption spectroscopy. In the reduced pressure air, the decomposition of CO2 is enhanced by vibration excitation induced by laser filament, resulting in the enhanced production of CO and HCN. At the same time, the CO and HCN generated from the atmosphere suffer rotation excitation induced by laser filament, enhancing their absorption spectra. It is found that NO, CO, and HCN accumulate to 134 ppm, 80 ppm, and 1.6 ppm in sealed air after sufficient reaction time. The atmospheric chemical reaction induced by laser filament opens the way to changing the air composition while maintaining environmental benefits.
中图分类号: (Spectroscopy of solid state dynamics)