エキシマレーザー照射による h-BN からのアブレーションプラズマの特性
エキシマレーザー照射による h-BN からのアブレーションプラズマの特性
复制标题
准分子激光辐照六方氮化硼烧蚀等离子体的特性
DOI:
10.3131/jvsj2.52.369
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
淳 横山
中科院分区:
文献类型:
--
作者:
弘則 大場;盛久 佐伯;文孝 江坂;洋一 山田;博之 山本;淳 横山
Characteristics of the plume plasma produced by UV (λ=308 nm) laser ablation of a hot-pressed hexaganol boron nitride (h-BN) target have been investigated in a high vacuum at a laser power density ranging from 0.1 to 3.2×108 W/cm2. Time-resolved detection of the ablated species has been achieved by using a quadrupole mass spectrometer and an ion probe. The average kinetic energy of ablated B+ is much larger than that of B, and increases with an increase in the laser power density, whereas the acceleration of neutral B is limited. The ionization degree in the plasma varies from 0.1 to 15% with increasing laser power density. The angular distributions of the ion flux and the total particle flux can be fitted by a cosine or a bicosine function and strongly depend on the laser power density.
影响因子:
56.9
作者:
Kubota, Yoichi;Watanabe, Kenji;Taniguchi, Takashi
通讯作者:
Taniguchi, Takashi