基于金与氧化铟锡/二氧化钛等离子体材料最佳组合的折射率传感设计

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-04-01 DOI:10.1117/1.JNP.16.026010

A. Shakya, Surinder Singh

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引用次数: 5

摘要

摘要在这项研究工作中，提出了一种基于五芯光子晶体光纤（PCF）的折射率（RI）传感器来解决表面等离子体共振（SPR）现象。所提出的RI传感器（PRIS）模型用两种材料配置进行了测试，即金铟锡氧化物（Au–ITO）和金二氧化钛（Au-TiO2）。从两种材料配置的PRIS测试RI在1.340至1.380 RIU之间变化的分析物。基于传感器参数，例如波长灵敏度（WS）、振幅灵敏度（as）、线性度和传感器分辨率（SR），将这些配置彼此进行比较。研究了横向电（TM）模式和横向电（TE）模式下的传感器参数。所提出的Au–ITO配置传感器提供了12000的最大WS 纳米 / RIU，公元13640年 RIU − 1，最大SR为8.33 × 10 − 6. TM模式的RIU。对应于11000的TE模式最大WS 纳米 / RIU，12180年 RIU − 1，最大SR为9.09 × 10 − 6. 获得RIU。所提出的Au–TiO2配置传感器的最大WS为12000 纳米 / RIU，截至20370年 RIU − 1，最大SR为8.33 × 10 − 6. TM模式的RIU。对应于13000的TE模式最大WS 纳米 / RIU，截至18100年 RIU − 1，最大SR为7.69 × 10 − 6. 获得RIU。对于两种配置，对于RI1.375RIU的分析物获得传感器特征的最大值。最后，对等离子体材料ITO和TiO2的传感参数进行了比较，并确定了当与Au一起用于RI传感时的最佳材料。

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Design of refractive index sensing based on optimum combination of plasmonic materials gold with indium tin oxide/titanium dioxide

Abstract. In this research work, a penta core photonic crystal fiber (PCF)-based refractive index (RI) sensor is presented to address the surface plasmon resonance (SPR) phenomenon. The proposed RI sensor (PRIS) model is tested with two material configurations, i.e., gold-indium tin oxide (Au–ITO) and gold–titanium dioxide (Au–TiO2). Analytes having an RI varying from 1.340 to 1.380 RIU are tested from the PRIS for both material configurations. These configurations are compared with each other based on sensor parameters, such as wavelength sensitivity (WS), amplitude sensitivity (AS), linearity, and sensor resolution (SR). The sensor parameters are investigated for both transverse electric (TM) mode and transverse electric (TE) mode. The proposed sensor with Au–ITO configuration offers a maximum WS of 12,000 nm / RIU, AS of 13,640 RIU − 1, and maximum SR of 8.33 × 10 − 6 RIU for TM mode. Corresponding to the TE mode maximum WS of 11,000 nm / RIU, AS of 12,180 RIU − 1 and maximum SR of 9.09 × 10 − 6 RIU are obtained. The proposed sensor with the Au–TiO2 configuration presents a maximum WS of 12,000 nm / RIU, AS of 20,370 RIU − 1, and maximum SR of 8.33 × 10 − 6 RIU for the TM mode. Corresponding to the TE mode maximum WS of 13,000 nm / RIU, AS of 18,100 RIU − 1 and maximum SR of 7.69 × 10 − 6 RIU is obtained. The maximum values of the sensor features are obtained for the analyte with RI 1.375 RIU for both configurations. Finally, a comparison between sensing parameters of plasmonic material ITO and TiO2 is performed, and optimum material is identified when used with Au for RI sensing.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.