Time and space-resolved spectroscopic and imaging study of a laser-produced swine muscle tissue plasma

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

Camacho, J.J.^1 ; Diaz, L.^2

Dpto. Química-Física Aplicada, Fac. Ciencias, Universidad Autónoma de Madrid, Cantoblanco, Madrid

28049, Spain^1

Instituto de Estructura de la Materia, CFMAC, CSIC, Serrano 121, Madrid

28006, Spain^2

关键词: CO2 laser pulse;    Drag model;    Imaging features;    Molecular band systems;    Muscle tissues;    Optical emissions;    Time-resolved;    Vacuum condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/4/042005/pdf
DOI  :  10.1088/1742-6596/635/4/042005

来源: IOP

【 摘 要 】

We investigated the optical emission and imaging features of plasmas produced by a high-power transversely excited atmospheric CO2laser pulses on a swine muscle tissue sample in different vacuum conditions. The analyzed plasma shows electronically excited neutral Na, K, C, Mg, H, Ca, N, and O atoms, ionized C+, C2+, C3+, Mg+, Mg2+, N+, N2+, Ca+, O+, and O2+species and molecular band systems of CN, C2, CH, NH, OH and CaOH. Time-resolved 2D emission spectroscopy is employed to study the expanded distribution of several species ejected during ablation. The expansion of the plume front was analyzed using Shock wave and Drag models.