Laser‐induced periodic surface damage and radiation remnants
Laser‐induced periodic surface damage and radiation remnants
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DOI：
10.1063/1.93494
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发表时间：
1982-08
影响因子：
4
通讯作者：
Jeff F. Young;J. Sipe;J. Preston;H. Driel
中科院分区：
文献类型：
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作者：
Jeff F. Young;J. Sipe;J. Preston;H. Driel
我们报道了1.06μm激光辐照对名义上光滑的Ge样品造成的周期性表面损伤的详细实验研究；我们通过研究其光学衍射图对损伤进行了新的观察，揭示了损伤结构中前所未有的丰富。批评了通常的“表面散射波”对损伤的解释；我们认为，损伤是由表面不均匀产生的电磁场造成的，但由于真空和体锗之间界面的存在，这些场是不辐射的；讨论了这些“辐射残留物”。
We report a detailed experimental study of the periodic surface damage induced by laser irradiation at 1.06 μm on nominally smooth Ge samples; we include novel observations of the damage obtained by studying its optical diffraction pattern, which reveals a previously unappreciated richness in the damage structure. The usual ’’surface scattered wave’’ explanation of the damage is criticized; we argue that the damage results from the electromagnetic fields generated by surface inhomogeneities but that, due to the presence of the interface between vacuum and bulk Ge, these fields are not radiative; these ’’radiation remnants’’ are discussed.