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Updated: May 10, 2026

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基于SPP的银-绝缘体-银结构用于医疗保健和温度传感应用

Anita Gravand, Abdolnaser Zakery

|August 12, 2025

概括

这项研究引入了一种新的等离子体折射率 (RI) 传感器,以提高性能. 金属-绝缘体-金属波导传感器在检测食品改,COVID-19和温度变化方面实现了高灵敏度.

科学领域:

光子学和等离子学.
光学传感技术的技术
纳米光子学纳米光子学

背景情况:

血传感器为检测分析物提供高灵敏度.
金属-绝缘体-金属 (MIM) 波导是集成光学中的关键组件.
折射率 (RI) 传感对于各种应用,包括诊断和质量控制至关重要.

研究的目的:

为了定量评估基于MIM波导的等离子RI传感器,具有磁盘共振器和三角缺陷.
研究几何参数对传感器性能和传输频谱的影响.
评估传感器在食品安全,医疗保健和温度测量的应用方面的潜力.

主要方法:

使用有限元法 (FEM) 进行定量分析.
模拟和分析了MIM波导传感器的传输频谱.
多种几何属性以优化传感器性能.

主要成果:

达到了1600nm/RIU的RI敏感度的峰值.
证明了 1.2 nm/C 的峰值温度灵敏度.
在900-2000nm波长范围内获得了72.9 RIU-1的优点 (FoM).

结论:

拟议的等离子RI传感器具有高灵敏度和显著的FoM.
该传感器适用于集成光学电路和高度敏感的应用.
潜在的应用包括食品油改检测,血液样本中的COVID-19识别和精确的温度测量.

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Assessing Body Temperature - Oral

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Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...