Femtosecond laser-induced refractive index change and phase-type Fresnel zone plate in fluorotellurite glass
文献类型：期刊论文
| 作者 | Li, Xianda2,3; Liu, Feng1; Wan, Rui2,3; Li, Weinan3 ; Wang, Pengfei3
|
| 刊名 | Optics and Laser Technology
 |
| 出版日期 | 2023-06 |
| 卷号 | 161 |
| 关键词 | Femtosecond laser direct writing Refractive index change Fluorotellurite glass Fresnel zone plate |
| ISSN号 | 00303992 |
| DOI | 10.1016/j.optlastec.2023.109216 |
| 产权排序 | 1 |
| 英文摘要 | We report a phase-type Fresnel zone plate (FZP) fabricated by femtosecond (fs) laser-induced refractive index change (RIC), which was embedded in a newly developed fluorotellurite glass. The effect of laser direct-writing parameters on the morphology of the laser-induced structures was studied and negative RIC was observed. A maximum RIC of 4.42×10-3 was achieved at laser inscription energy of 0.13 µJ. Additionally, structure change from TeO4 units to TeO3- units triggered by fs laser irradiation is verified by Raman spectra measurements for the first time, to the best of our knowledge, and demonstrated to be a vital factor for the negative RIC. On this basis, we firstly fabricated a two-level phase-type FZP designed to work at 1340 nm inside such fluorotellurite glass. The phase-type FZP exhibits strong IR beam focusing and excellent imaging capabilities with a resolution of 128 line pairs per millimeter (lp/mm). This study reveals the facts that such novel fluorotellurite glass has good processibility with fs laser direct writing and made it a potential alternative material for micro-optics in NIR applications. © 2023 Elsevier Ltd |
| 语种 | 英语 |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.opt.ac.cn/handle/181661/96330]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 作者单位 | 1.Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an; 710129, China 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing; 100049, China; 3.State Key Laboratory of Transient Optics and Photonics, Xi'an' Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; |
| 推荐引用方式 GB/T 7714 | Li, Xianda,Liu, Feng,Wan, Rui,et al. Femtosecond laser-induced refractive index change and phase-type Fresnel zone plate in fluorotellurite glass[J]. Optics and Laser Technology,2023,161. |
| APA | Li, Xianda,Liu, Feng,Wan, Rui,Li, Weinan,&Wang, Pengfei.(2023).Femtosecond laser-induced refractive index change and phase-type Fresnel zone plate in fluorotellurite glass.Optics and Laser Technology,161. |
| MLA | Li, Xianda,et al."Femtosecond laser-induced refractive index change and phase-type Fresnel zone plate in fluorotellurite glass".Optics and Laser Technology 161(2023). |
入库方式： OAI收割
来源：西安光学精密机械研究所
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