Fluorescence measurements of expanding strongly coupled neutral plasmas.
Fluorescence measurements of expanding strongly coupled neutral plasmas.
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DOI：
10.1103/physrevlett.95.235001
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发表时间：
2005-06
影响因子：
8.6
通讯作者：
E. A. Cummings;J. Daily;D. Durfee;Scott D. Bergeson
中科院分区：
文献类型：
--
作者：
E. A. Cummings;J. Daily;D. Durfee;Scott D. Bergeson
我们报告新的详细的密度分布测量在扩大强耦合中性钙等离子体。利用激光诱导荧光技术，我们可以在10（5）到10（9）cm（-3）的范围内测量等离子体密度，时间分辨率限制为7 ns。等离子体离子中的强耦合直接从荧光信号推断。强耦合的证据在晚些时候，证实了最近的理论结果。
We report new detailed density profile measurements in expanding strongly coupled neutral calcium plasmas. Using laser-induced fluorescence techniques, we determine plasma densities in the range of 10(5) to 10(9) cm(-3) to with a time resolution limit as small as 7 ns. Strong coupling in the plasma ions is inferred directly from the fluorescence signals. Evidence for strong coupling at late times is presented, confirming a recent theoretical result.