Low-order harmonic generation in a ZnS laser ablation plasma

29th International Conference on Photonic, Electronic, and Atomic Collisions

Oujja, M.^1 ; Benítez-Cañete, A.^1 ; López-Quintás, I.^1 ; Martín, M.^1 ; De Nalda, R.^1 ; Castillejo, M.^1

Instituto de Química Física Rocasolano, CSIC, Madrid

28006, Spain^1

关键词: 1064 nm;    Harmonic orders;    High conversion efficiency;    Laser ablation plasmas;    Low order;    Near Infrared;    Temporal analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/12/122002/pdf
DOI  :  10.1088/1742-6596/635/12/122002

来源: IOP

【 摘 要 】

Low-order (3rdto 9th) harmonic generation of a near-infrared driving laser (1064 nm) is reported in a laser ablation plasma of ZnS. Temporal analysis shows two distinct components with respect to the ablation event. The late temporal component exhibits high conversion efficiency for the highest harmonic orders observed. This is attributed to a dramatic modification of the plasma medium with the driving laser.