Real-time and non-destructive gas mixture analysis using linear various filter enabled mid-infrared visualization. Academic Article uri icon


  • Real-time gas mixture analysis has been demonstrated using various linear variable filter (LVF)-enabled mid-infrared (mid-IR) visualizations. Due to the characteristic absorptions of different gases, the algorithm-enabled sensing method has the ability to detect multi-component gas mixtures noninvasively. The proposed system consisted of a broadband light source, a gas mixing and delivery chamber made by polydimethylsiloxane (PDMS), a LVF, and a real-time monitoring mid-IR camera. The system performance was evaluated by detecting CH4 and C2H2 at their characteristic C-H absorptions from =3.0 to 3.5 m. A fast and accurate identification of gas samples was achieved. Therefore, our real-time and non-destructive gas analysis system enables a new visualization technology for environmental monitoring and industrial measurement.

published proceedings

  • Opt Express

author list (cited authors)

  • Yang, J., & Lin, P. T.

citation count

  • 5

complete list of authors

  • Yang, Jinghao||Lin, Pao Tai

publication date

  • September 2019