| Coherence in ultrafast laser-induced periodic surface structures | |
Zhang, Hao1; Colombier, Jean-Philippe1; Li, Chen1,2,3 ; Faure, Nicolas1; Cheng, Guanghua2; Stoian, Razvan1; Zhang, H
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| 作者部门 | 瞬态光学技术国家重点实验室 |
| 2015-11-13 | |
| 发表期刊 | PHYSICAL REVIEW B
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| ISSN | 1098-0121 |
| 卷号 | 92期号:17页码:174109 |
| 产权排序 | 2 |
| 摘要 | Ultrafast laser irradiation can trigger anisotropically structured nanoscaled gratinglike arrangements of matter, the laser-induced periodic surface structures (LIPSSs). We demonstrate here that the formation of LIPSS is intrinsically related to the coherence of the laser field. Employing several test materials that allow large optical excursions, we observe the effect of randomizing spatial phase in generating finite domains of ripples. Using three-dimensional finite-difference time-domain methods, we evaluate energy deposition patterns below a material's rough surface and show that modulated pattern, i.e., a spatially ordered electromagnetic solution, results from the coherent superposition of waves. By separating the field scattered from a surface rough topography from the total field, the inhomogeneous energy absorption problem is reduced to a simple interference equation. We further distinguish the contribution of the scattered near field and scattered far field on various types of inhomogeneous energy absorption features. It is found that the inhomogeneous energy absorption which could trigger the low-spatial-frequency LIPSSs (LSFLs) and high-spatial-frequency LIPSSs (HSFLs) of periodicity Lambda > lambda/Re((n) over tilde) are due to coherent superposition between the scattered far field (propagation) and the refracted field, while HSFLs of Lambda > lambda/Re((n) over tilde) are triggered by coherent superposition between the scattered near field (evanescent) and the refracted field. This is a general scenario that involves a topography-induced scattering phenomenon and stationary evanescent fields, being applied to two model case materials that exhibit large optical excursions upon excitation (W, Si) and nonplasmonic to plasmonic transitions. We indicate the occurrence of a general light interference phenomenon that does not necessarily involve wavelike surface plasmonic excitation. Finally, we discuss the role of interference field and scattered field on the enhancement of LIPSSs by simulating interpulse feedback effects and provide the electromagnetic origin of grooves (Lambda > lambda) related to a feedback-driven topography evolution. Those results strongly suggest the electromagnetic interpretation of LIPSSs in interplay with an evolving surface topography. |
| 文章类型 | Article |
| 学科领域 | Physics, Condensed Matter |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1103/PhysRevB.92.174109 |
| 收录类别 | SCI |
| 关键词[WOS] | FEMTOSECOND LASER ; PULSES ; ABLATION ; RIPPLES ; MORPHOLOGY ; SILICON |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| 项目资助者 | French National Research Agency (ANR) project DYLIPSS(ANR-12-IS04-0002-01) ; China Scholarship Council |
| WOS类目 | Physics, Condensed Matter |
| WOS记录号 | WOS:000368094200001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/27793 |
| 专题 | 瞬态光学研究室 |
| 通讯作者 | Zhang, H |
| 作者单位 | 1.Univ St Etienne, Univ Lyon, UMR CNRS 5516, Lab Hubert Curien, F-42000 St Etienne, France 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hao,Colombier, Jean-Philippe,Li, Chen,et al. Coherence in ultrafast laser-induced periodic surface structures[J]. PHYSICAL REVIEW B,2015,92(17):174109. |
| APA | Zhang, Hao.,Colombier, Jean-Philippe.,Li, Chen.,Faure, Nicolas.,Cheng, Guanghua.,...&Zhang, H.(2015).Coherence in ultrafast laser-induced periodic surface structures.PHYSICAL REVIEW B,92(17),174109. |
| MLA | Zhang, Hao,et al."Coherence in ultrafast laser-induced periodic surface structures".PHYSICAL REVIEW B 92.17(2015):174109. |
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| Coherence in ultrafa（11844KB） | 期刊论文 | 作者接受稿 | 限制开放 | CC BY-NC-SA | 请求全文 | |
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