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Detection of aqueous nitro explosives using SPR sensors integrated with D-shaped optical fibers.

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Title: Detection of aqueous nitro explosives using SPR sensors integrated with D-shaped optical fibers.
Authors: Upadhyay, Abhishek1, Sharma, Gaurav2, Maurya, Rajiv2, Mishra, Ankit2, Singh, Vivek2 viveks@bhu.ac.in
Source: Journal of Russian Laser Research. Jul2026, Vol. 46 Issue 1-3, p18-27. 10p.
Subjects: Surface plasmon resonance, Explosives detection, Finite element method, Optical fiber detectors, Optical fibers
Abstract: This study presents an optimization and simulation of a surface plasmon resonance-based optical fiber sensor with a D-shaped configuration, for the precise detection of aqueous nitro explosive. The proposed sensor undergoes simulation and analysis using finite element techniques. Optimization of the Au layer thickness, with a 30 nm layer identified for maximum SPR curve reflection, Subsequently, a polyaniline layer was applied to enable selective detection. Varying sample concentrations interact uniquely with the polyaniline sensing surface, as concentration increases, the SPR dip shifts toward longer wavelengths like red-shift in the spectra. Simulating sensor lengths ranging from 1 to 5 mm provides valuable insights into sensor responses, showing improved detection accuracy and figure of merit as the sensor length decreases. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Russian Laser Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 193366813
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: Detection of aqueous nitro explosives using SPR sensors integrated with D-shaped optical fibers.
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  Data: <searchLink fieldCode="AR" term="%22Upadhyay%2C+Abhishek%22">Upadhyay, Abhishek</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sharma%2C+Gaurav%22">Sharma, Gaurav</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Maurya%2C+Rajiv%22">Maurya, Rajiv</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mishra%2C+Ankit%22">Mishra, Ankit</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Singh%2C+Vivek%22">Singh, Vivek</searchLink><relatesTo>2</relatesTo><i> viveks@bhu.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Russian+Laser+Research%22">Journal of Russian Laser Research</searchLink>. Jul2026, Vol. 46 Issue 1-3, p18-27. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Surface+plasmon+resonance%22">Surface plasmon resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Explosives+detection%22">Explosives detection</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fiber+detectors%22">Optical fiber detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fibers%22">Optical fibers</searchLink>
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  Label: Abstract
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  Data: This study presents an optimization and simulation of a surface plasmon resonance-based optical fiber sensor with a D-shaped configuration, for the precise detection of aqueous nitro explosive. The proposed sensor undergoes simulation and analysis using finite element techniques. Optimization of the Au layer thickness, with a 30 nm layer identified for maximum SPR curve reflection, Subsequently, a polyaniline layer was applied to enable selective detection. Varying sample concentrations interact uniquely with the polyaniline sensing surface, as concentration increases, the SPR dip shifts toward longer wavelengths like red-shift in the spectra. Simulating sensor lengths ranging from 1 to 5 mm provides valuable insights into sensor responses, showing improved detection accuracy and figure of merit as the sensor length decreases. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Russian Laser Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1007/s10946-025-10252-7
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 18
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      – SubjectFull: Surface plasmon resonance
        Type: general
      – SubjectFull: Explosives detection
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Optical fiber detectors
        Type: general
      – SubjectFull: Optical fibers
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      – TitleFull: Detection of aqueous nitro explosives using SPR sensors integrated with D-shaped optical fibers.
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            – D: 01
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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              Value: 46
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            – TitleFull: Journal of Russian Laser Research
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