| Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser | |
| Huang M(黄敏); Zhao FL(赵福利); Cheng Y(程亚); Xu NS(许宁生); Xu ZZ(徐至展) | |
| 2009-11-12 | |
| Source Publication | ACS Nano
 |
| Volume | 3Issue:12Pages:4062–4070 |
| Abstract | We show that short-pulse laser-induced classical ripples on dielectrics, semiconductors, and conductors exhibit a prominent “non-classical” characteristic--in normal incidence the periods are definitely smaller than laser wavelengths, which indicates that the simplified scattering model should be revised. Taking into account the surface plasmons (SPs), we consider that the ripples result from the initial direct SP-laser interference and the subsequent grating-assisted SP-laser coupling. With the model, the period-decreasing phenomenon originates in the admixture of the field-distribution effect and the grating-coupling effect. Further, we propose an approach for obtaining the dielectric constant, electron density, and electron collision time of the high-excited surface. With the derived parameters, the numerical simulations are in good agreement with the experimental results. On the other hand, our results confirm that the surface irradiated by short-pulse laser with damage-threshold fluence should behave metallic, no matter for metal, semiconductor, or dielectric, and the short-pulse laser-induced subwavelength structures should be ascribed to a phenomenon of nano-optics. |
| Cooperation Status | 国内 |
| Keyword | Laser-induced Near-subwavelength Ripples Surface Plasmons Sp-laser Interference Grating-assisted Sp-laser Coupling High-excited Surface Nano-optics |
| Subject Area | 光学 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000272846000040 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.siom.ac.cn/handle/181231/6799 |
| Collection | 强场激光物理国家重点实验室 |
| Recommended Citation GB/T 7714 | Huang M,Zhao FL,Cheng Y,et al. Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser[J]. ACS Nano,2009,3(12):4062–4070. |
| APA | Huang M,Zhao FL,Cheng Y,Xu NS,&Xu ZZ.(2009).Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser.ACS Nano,3(12),4062–4070. |
| MLA | Huang M,et al."Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser".ACS Nano 3.12(2009):4062–4070. |
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