کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5369272 | 1388425 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Propagation of LaMnO3 laser ablation plume in oxygen gas Propagation of LaMnO3 laser ablation plume in oxygen gas](/preview/png/5369272.png)
The propagation of LaMnO3 laser ablation plume in oxygen background has been investigated using fast photography of overall visible plume emission and time-resolved optical emission spectroscopy. The plume expansion was studied with ambient oxygen pressures ranging from vacuum level to 100Â Pa. Free-expansion, splitting, sharpening and stopping of the plume were observed at different pressures and time delays after the laser pulse. Time-resolved optical emission spectroscopy showed that oxides are mainly formed through reaction of the atomic species ablated from the target with oxygen in the gas-phase. These reactions mainly affect the content of lanthanum oxide in the plume, while emission of manganese oxide is barely observed in all the range of pressure investigated.
Journal: Applied Surface Science - Volume 252, Issue 13, 30 April 2006, Pages 4712-4716