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High-sensitivity Goos–Hänchen shift gas sensor based on subwavelength hyperbolic metamaterials

Author

Listed:
  • Ji Ma

    (Liaoning Provincial Key Laboratory of Novel Micro-Nano Functional Materials, Liaoning Petrochemical University, Fushun 113001, P. R. China†College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

  • Manli Wei

    (Liaoning Provincial Key Laboratory of Novel Micro-Nano Functional Materials, Liaoning Petrochemical University, Fushun 113001, P. R. China†College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

  • Di Wu

    (Liaoning Provincial Key Laboratory of Novel Micro-Nano Functional Materials, Liaoning Petrochemical University, Fushun 113001, P. R. China†College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

  • Sitong Liu

    (Liaoning Provincial Key Laboratory of Novel Micro-Nano Functional Materials, Liaoning Petrochemical University, Fushun 113001, P. R. China†College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

  • Runhua Li

    (Liaoning Provincial Key Laboratory of Novel Micro-Nano Functional Materials, Liaoning Petrochemical University, Fushun 113001, P. R. China†College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

  • Lulu Sun

    (��College of Sciences, Liaoning Petrochemical University, Fushun 113001, P. R. China)

Abstract

Optical gas sensors play an increasingly important role in many applications, particularly for the detection of toxic gases. A novel Goos–Hänchen (GH) shift optical gas sensing scheme based on subwavelength hyperbolic metamaterials (HMMs) is proposed. The GH shift intensity, direction and the critical wavelength characteristics were revealed. By virtue of the GH shift and subwavelength HMMs characteristics, we designed an ultra-sensitive gas sensor to detect helium (He), hydrogen (H2), carbon monoxide (CO) and methane (CH4). The study shows that the sensitivities of the gas sensor can reach as high as SHe=3.06×106μm/RIU, SH2=2.86×106μm/RIU, SCO=1.81×106μm/RIU, and SCH4=9.58×105μm/RIU. With proper surface chemical modification, this GH shift gas sensor would be a powerful tool for high-sensitive gas sensing applications.

Suggested Citation

  • Ji Ma & Manli Wei & Di Wu & Sitong Liu & Runhua Li & Lulu Sun, 2023. "High-sensitivity Goos–Hänchen shift gas sensor based on subwavelength hyperbolic metamaterials," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 34(09), pages 1-9, September.
    • Handle: RePEc:wsi:ijmpcx:v:34:y:2023:i:09:n:s0129183123501127
    DOI: 10.1142/S0129183123501127
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