Surface plasmon resonance prism coupler for gas sensing based on Stokes polarimetry

Background: Gas sensors are very important in several fields like gas monitoring, safety and environmental applications. In this approach, a new gas sensing concept is investigated which combines the powerful adsorption probability of metal oxide conductive sensors (MOS) with an optical ellipsometric readout. This concept shows promising results to solve the problems of cross sensitivity of the MOS concept. Results: Undoped tin oxide (SnOx) and iron doped tin oxide (Fe:SnOx) thin add-on films were prepared by magnetron sputtering on the top of the actual surface plasmon resonance (SPR) sensing gold layer. The films were tested for their sensitivity to several gas species in the surface plasmon resonance enhanced (SPREE) gas measurement. It was found that the undoped tin oxide (SnOx) shows higher sensitivities to propane (C3H8) then to carbon monoxide (CO). By using Fe:SnOx, this relation is inverted. This behavior was explained by a change of the amount of binding sites for CO in the layer due to this iron doping. For hydrogen (H2) no such relation was found but the sensing ability was identical for both layer materials. This observation was related to a different sensing mechanism for H2 which is driven by the diffusion into the layer instead of adsorption on the surface. Conclusion: The gas sensing selectivity can be enhanced by tuning the properties of the thin film overcoating. A relation of the binding sites in the doped and undoped SnOx films and the gas sensing abilities for CO and C3H8 was found. This could open the path for optimized gas sensing devices with different coated SPREE sensors.

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Surface Plasmon Resonance of SnO2/Au Bi-layer Films for Gas Sensing Applications

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2010.01.054 ◽

2010 ◽

Vol 145 (2) ◽

pp. 832-838 ◽

Cited By ~ 32

Author(s):

Dongfang Yang ◽

Hui-Hsin Lu ◽

Bo Chen ◽

Chii-Wann Lin

Keyword(s):

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Gas Sensing ◽

Sensing Applications

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Surface plasmon resonance prism coupler for enhanced circular birefringence sensing and application to non-invasive glucose detection

Optics Express ◽

10.1364/oe.400721 ◽

2020 ◽

Vol 28 (17) ◽

pp. 24889

Author(s):

Quoc-Hung Phan ◽

You-Rui Lai ◽

Wei-Zhe Xiao ◽

Thi-Thu-Hien Pham ◽

Chi-Hsiang Lien

Keyword(s):

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Glucose Detection ◽

Non Invasive ◽

Prism Coupler

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CH3NH3PbBr3 Thin Film Served as Guided-Wave Layer for Enhancing the Angular Sensitivity of Plasmon Biosensor

Biosensors ◽

10.3390/bios11110415 ◽

2021 ◽

Vol 11 (11) ◽

pp. 415

Author(s):

Leiming Wu ◽

Yuanjiang Xiang ◽

Yuwen Qin

Keyword(s):

Thin Film ◽

Surface Plasmon Resonance ◽

Gas Sensor ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Gas Sensing ◽

Hybrid Structure ◽

Guided Wave ◽

Angular Sensitivity ◽

Liquid Sensing

CH3NH3PbBr3 perovskite thin film is used as a guided-wave layer and coated on the surface of an Au film to form the Au-perovskite hybrid structure. Using the hybrid structure, a perovskite-based guided-wave surface plasmon resonance (GWSPR) biosensor is proposed with high angular sensitivity. First, it is found that the electric field at the sensing interface is improved by the CH3NH3PbBr3 perovskite thin film, thereby enhancing the sensitivity. The result demonstrates that the angular sensitivity of the Au-perovskite-based GWSPR biosensor is as high as 278.5°/RIU, which is 110.2% higher than that of a conventional Au-based surface plasmon resonance (SPR) biosensor. Second, the selection of the coupling prism in the configuration of the GWSPR biosensor is also analyzed, and it indicates that a low refractive index (RI) prism can generate greater sensitivity. Therefore, the low-RI BK7 prism is served as the coupling prism for the proposed GWSPR biosensor. Finally, the proposed GWSPR sensing structure can not only be used for liquid sensing, but also for gas sensing, and it has also been demonstrated that the GWSPR gas sensor is 2.8 times more sensitive than the Au-based SPR gas sensor.

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Surface plasmon resonance optical gas sensing of nanostructured ZnO films

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2007.09.065 ◽

2008 ◽

Vol 130 (1) ◽

pp. 531-537 ◽

Cited By ~ 40

Author(s):

C DEJULIANFERNANDEZ ◽

M MANERA ◽

G PELLEGRINI ◽

M BERSANI ◽

G MATTEI ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Gas Sensing ◽

Zno Films ◽

Optical Gas Sensing

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An Overview of Artificial Olfaction Systems with a Focus on Surface Plasmon Resonance for the Analysis of Volatile Organic Compounds

Biosensors ◽

10.3390/bios11080244 ◽

2021 ◽

Vol 11 (8) ◽

pp. 244

Author(s):

Marielle El Kazzy ◽

Jonathan S. Weerakkody ◽

Charlotte Hurot ◽

Raphaël Mathey ◽

Arnaud Buhot ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Volatile Organic Compounds ◽

Organic Compounds ◽

Surface Plasmon ◽

Plasmon Resonance ◽

High Sensitivity ◽

Label Free ◽

Electronic Noses ◽

Prism Coupler ◽

Volatile Organic

The last three decades have witnessed an increasing demand for novel analytical tools for the analysis of gases including odorants and volatile organic compounds (VOCs) in various domains. Traditional techniques such as gas chromatography coupled with mass spectrometry, although very efficient, present several drawbacks. Such a context has incited the research and industrial communities to work on the development of alternative technologies such as artificial olfaction systems, including gas sensors, olfactory biosensors and electronic noses (eNs). A wide variety of these systems have been designed using chemiresistive, electrochemical, acoustic or optical transducers. Among optical transduction systems, surface plasmon resonance (SPR) has been extensively studied thanks to its attractive features (high sensitivity, label free, real-time measurements). In this paper, we present an overview of the advances in the development of artificial olfaction systems with a focus on their development based on propagating SPR with different coupling configurations, including prism coupler, wave guide, and grating.

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