网格合波导增强拉曼传感器传感器
Mohamed A Ettabib1, Bethany M Bowden2, Zhen Liu1
1Zepler Institute for Photonics and Nanoelectronics, University of Southampton, Southampton, United Kingdom.
PloS one
|August 10, 2023
概括
我们开发了一个波导增强的拉曼光谱 (WERS) 平台,使用对齐耐受格合器. 该系统简化了WERS设备,并提高了用于化学分析的拉曼信号效率.
科学领域:
- 光学和光子学 在光学和光子学.
- 频谱学是一种光谱学.
- 材料科学 材料科学 材料科学
背景情况:
- 波导增强拉曼光谱 (WERS) 为化学检测提供了高灵敏度.
- 传统的WERS系统通常需要精确的光学对齐,这限制了它们的实际应用.
- 开发对齐耐受性合方法对于强大且易于使用的WERS设备至关重要.
研究的目的:
- 介绍一个新的WERS平台,其中包含了对齐耐受的芯片下网格输入合器.
- 使用氧化波导和醇分析剂来演示平台的功能.
- 评价格网格合器在对齐耐受性和效率方面提供的性能增强.
主要方法:
- 一个100纳米厚的平面氧化 (Ta2O5) 波导的制造.
- 集成下芯片格合器用于简化输入合.
- 使用醇 (BnOH) 和其化形式 (d7-BnOH) 作为拉曼光谱的参考分析物.
- 拉曼振动转移的表征用于校准目的.
主要成果:
- 已成功实施了WERS的对齐耐受格合器.
- 实现了改进的翻译对齐容忍度,有利于一次性WERS芯片.
- 观察到BnOH和d7-BnOH之间的显著拉曼振动线移位,适合系统校准.
- 报告说,由于格子合器设计,拉曼转换效率提高.
结论:
- 开发的带有网格合器的WERS平台为拉曼光谱学提供了简化和更强大的方法.
- 使用BnOH和d7-BnOH为校准WERS系统提供了一个实用的方法.
- 该平台显示了进一步性能改进和化学传感领域更广泛应用的潜力.
相关概念视频
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