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双面照明合表面等离子体共振传感器使用直接光学磁盘
Wisansaya Jaikeandee1, Asad Ullah Hil Gulib1, Taeyul Choi1
1Department of Mechanical Engineering, University of North Texas, Denton, TX 76207, USA.
Materials (Basel, Switzerland)
|February 13, 2026
概括
这项研究表明,商业光盘可以作为网格合表面等离子体共振 (GC-SPR) 传感器的成本有效基板. 前侧照明和银涂层与后侧照明和铜涂层相比,提供了更好的传感器性能.
科学领域:
- 塑制剂是一种塑制剂.
- 纳米光子学 纳米光子学
- 传感器技术 传感器技术
背景情况:
- 表面等离子共振 (SPR) 传感器为检测折射率变化提供高灵敏度.
- 制造SPR传感器通常需要专门的和昂贵的格子基板.
- 光学磁盘为创建格子基板提供了一个潜在的低成本替代方案.
研究的目的:
- 调查使用商业光盘作为网格合表面等离子体共振 (GC-SPR) 传感器的基板的可行性.
- 为了比较在不同类型的光盘 (BD-R,DVD-R,CD-R) 上制造的GC-SPR传感器的性能.
- 评估照明几何形状 (前侧与后侧) 和金属涂层 (银与铜) 对传感器性能的影响.
主要方法:
- 光学磁盘 (BD-R,DVD-R,CD-R) 被用作格子基板.
- 银 (Ag) 和铜 (Cu) 薄膜通过磁铁喷射沉积在磁盘上,以创建等离子电网格.
- 用波长调节的SPR光谱法测量了等离子体反应.
- 严格合波分析 (RCWA) 用于理论预测传感器行为.
主要成果:
- 与Cu涂层网格相比,Ag涂层网格表现出更明显的SPR共振,而Cu涂层网格由于较高的阻尼,显示出更广泛的峰值.
- 前侧照明导致与后侧照明相比,SPR激发更强,更可重现.
- 使用Ag涂层CD-R,BD-R和DVD-R,分别获得了394,321和290nm/RIU的折射率灵敏度.
结论:
- 商业光盘是GC-SPR传感器的可行,低成本的基板.
- 传感器的性能受到磁盘类型,金属涂层和照明策略的选择的影响.
- 建议使用光盘基板进行前侧照明和银涂层,以获得最佳的SPR传感器性能.
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