Microneedle structuring of Si(111) by irradiation with picosecond optical vortex pulses
Microneedle structuring of Si(111) by irradiation with picosecond optical vortex pulses
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DOI：
10.35848/1882-0786/ab8d4b
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发表时间：
2020-06-01
影响因子：
2.3
通讯作者：
Omatsu, Takashige
中科院分区：
文献类型：
--
作者：
Ablez, Ablimit;Toyoda, Kohei;Omatsu, Takashige
我们报道了用单光涡旋皮秒脉冲辐照Si(100)和Si(111)的光涡诱导结构的比较研究。此外，我们还讨论了总角动量()对光涡诱导微针的影响。Si(111)允许微针更快地生长，尽管这会影响针的单晶化。然后，迫使熔化的硅沿轴向旋转，从而在基板上高效地积累熔化的硅，以形成微针。这些结果为研究光学涡旋场与辐照材料之间的相互作用提供了新的基本见解。(C)2020年日本应用物理学会
We report on comparative studies of the optical vortex-induced structures of both Si(100) and Si(111) by irradiation with a single optical vortex picosecond pulse. Furthermore, we address the effects of the total angular momentum (TAM) on the optical vortex-induced microneedle. Si(111) allows for the faster growth of the microneedle, although this impacts the monocrystallization of the needle. The TAM then forces the melted silicon to spin axially, thereby yielding an efficient accumulation of melted silicon on the substrate for microneedle formation. These results provide new fundamental insights into the interactions between optical vortex fields and irradiated materials. (c) 2020 The Japan Society of Applied Physics