高规律的激光诱导在薄膜上的周期性表面结构用于光子学和光纤学
Kirill Bronnikov1,2, Vadim Terentyev1, Victor Simonov1
1Institute of Automation and Electrometry of the SB RAS, 1 Acad. Koptyug Ave., 630090 Novosibirsk, Russia.
ACS applied materials & interfaces
|December 6, 2024
概括
激光诱导周期性表面结构 (LIPSS) 允许成本高效,可扩展的光纤网格的制造. 这些LIPSS辅助的氧化网格提供了高效的光合,并有可能用于先进的光子应用.
科学领域:
- 材料科学 材料科学 材料科学
- 光学和光子学 在光学和光子学.
- 纳米技术 纳米技术
背景情况:
- 光子设备需要可扩展的方法来创建周期性表面图案,特别是在光纤等非平面表面上.
- 激光诱导周期性表面结构 (LIPSS) 为此类图案提供了一步制造路线,为加工变化提供了强度.
研究的目的:
- 为了证明LIPSS辅助氧化薄膜使用femtosecond激光脉冲制造正规的鲁格子.
- 探索这些网格在光纤中的应用,用于光合和传感.
- 调查LIPSS作为等离子体网格模板的使用情况.
主要方法:
- 接近红外的femtosecond激光脉冲被用来诱导薄薄膜上的周期性表面结构,导致自我终结的氧化和鲁脊形成.
- 格是在光纤侧墙,端面和D形纤维上制造的.
- 用于等离子体应用,对LIPSS施加了银涂层.
主要成果:
- 制造的鲁酸格的衍射效率高于7%.
- 在光纤上以高达65°的冲击角度实现了有效的自由空间光线合到引导模式.
- 带有网格的D形纤维显示了布拉格网格行为,具有狭窄的共振 (<1 nm).
- 涂银的LIPSS显示了对具有高Q因子 (150) 的表面等离子体波的共振合.
结论:
- LIPSS辅助氧化是一种可重复和稳定的方法,用于制造功能性光纤网格.
- 这些网格在传感,光管理和等离子体学方面具有潜在的应用,包括等离子体生物传感和非线性光学.
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