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<p>Acetone acts as a biomarker whose concentration in breath shoots up for diabetic patients and can be used to detect ketonuria. Environmentally, it is a harmful volatile gas which can cause damage to human organs, thus making its detection a crucial one. Here, in this paper, acetone detection is carried out using refractive index sensing approach using metamaterial (MM) technology. Transparent Conducting Oxides (TCOs) substitutes widely used metals like gold and silver for sensing applications since it supports surface plasmon propagation and reduces loss by absorption which is imposed by the metallic property. Indium tin oxide, a well known degenerate semiconductor of n- type is used with alumina to form the metamaterial cladding. The efficacy of proposed refractive index (RI) sensor is analysed by sensing acetone. The proposed RI sensor reports a sensitivity of 930.2326&#xa0;nm / RIU with maximum loss value of 0.4 dB/m. This sensor achieves a minimum power confinement of 91% with this uncomplicated conventional structure.</p>

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Detection of acetone with ITO based plasmonic metamaterial fiber in visible to infrared

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • Mahalakshmi Perumal,
  • Abdullah N. Alodhayb,
  • Khalid E. Alzahrani,
  • Saravanan Pandiaraj

摘要

Acetone acts as a biomarker whose concentration in breath shoots up for diabetic patients and can be used to detect ketonuria. Environmentally, it is a harmful volatile gas which can cause damage to human organs, thus making its detection a crucial one. Here, in this paper, acetone detection is carried out using refractive index sensing approach using metamaterial (MM) technology. Transparent Conducting Oxides (TCOs) substitutes widely used metals like gold and silver for sensing applications since it supports surface plasmon propagation and reduces loss by absorption which is imposed by the metallic property. Indium tin oxide, a well known degenerate semiconductor of n- type is used with alumina to form the metamaterial cladding. The efficacy of proposed refractive index (RI) sensor is analysed by sensing acetone. The proposed RI sensor reports a sensitivity of 930.2326 nm / RIU with maximum loss value of 0.4 dB/m. This sensor achieves a minimum power confinement of 91% with this uncomplicated conventional structure.