期刊
PLASMA SCIENCE & TECHNOLOGY
卷 19, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2058-6272/aa8acc
关键词
LIBS; plasma plume; sample temperature; expansion dynamics
资金
- National Natural Science Foundation of China [11674128, 11504129, 11474129]
- Jilin Province Scientific and Technological Development Program, China [20170101063JC]
- Education Department of Jilin Province, China [400]
In this paper, we investigated the influence of sample temperature on the expansion dynamics and the optical emission spectroscopy of laser-induced plasma, and Ge was selected as the test sample. The target was heated from room temperature (22 degrees C) to 300 degrees C, and excited in atmospheric environment by using a Q-Switched Nd:YAG pulse laser with the wavelength of 1064 nm. To study the plasma expansion dynamics, we observed the plasma plume at different laser energies (5.0, 7.4 and 9.4 mJ) and different sample temperatures by using time-resolved image. We found that the heated target temperature could accelerate the expansion of plasma plume. Moreover, we also measured the effect of target temperature on the optical emission spectroscopy and signal-to-noise ratio.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据