NETL: Near-Infrared Absorption Gas Sensors using Plasmonic-Enhanced Nano-composite Films

In this project, we explored the integration of photonic devices with metal-organic framework (MOF) materials for gas sensing. The research includes: 1) An ultra-short near-infrared fiber optic gas sensor using MOF coating; 2) Development of plasmonic nano-structure fabricated on sapphire substrate hybrid with MOF for infrared absorption based gas sensing; 3) a suspended silicon nitride (Si3N4) nano-membrane device integrating plasmonic nano-patch antennas with MOF; and 4) an ultra-compact, cost-effective on-chip near-infrared spectroscopy system for CO2 sensing using narrow-band optical filter array based on plasmonic gratings with a waveguide layer.

Related Publications:

  • X. Chong, Y. Zhang, E. Li, K-J Kim, P. Ohodnicki, C-H Chang, and A. X. Wang, "Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing", manuscript under review
  • Xinyuan Chong, Ki-joong Kim, Erwen Li, Yujing Zhang, Paul R. Ohodnicki, Chih-Hung Chang, and Alan X. Wang, "Plasmonic nano-patch array with integrated metal-organic framework for enhanced infrared absorption gas sensing," IOP Nanotechnology, 28, no. 26LT01 (2017): 26LT01
  • X. Chong, E. Li, K. Squire, and A. X. Wang, "On-chip Near-infrared Spectroscopy of CO2 using High Resolution Plasmonic Filter Array," Applied Physics Letters, 108, 221106 (2016)
  • X-Y Chong, K-J Kim, E. Li, Y. Zhang, P. R. Ohodnicki, C-H Chang, and A. X. Wang, "Near-Infrared Absorption Gas Sensing with Metal-Organic Framework on Optical Fibers,” Sensors &Actuators: B. Chemical, Vol.232, 43-51 (2016) 
  • E. Li, X. Chong, F. Ren, and A. X. Wang, "Broadband on-chip near-infrared spectroscopy based on plasmonic grating filter array," Optics Letters, Vol.41, 1913-1916 (2016)
  • X. Chong, K-J Kim, E. Li, P. R. Ohodnicki, C-H Chang, and A. X. Wang, "Ultra-Short Near-Infrared Fiber-Optic Sensors for Carbon Dioxide Detection", IEEE Sensors, 10.1109/JSEN.2015.2438063 (2015) 
  • K-J Kim, X. Chong, P. B. Kreider, G. Ma, P. R. Ohodnicki, J. P. Baltrus, A. X. Wang, and C-H Chang, "Plasmonics-enhanced metal-organic framework nanoporous films for highly sensitive near-infrared absorption", Journal of Materials Chemistry C, DOI: 10.1039/ C4TC02846E (2015)

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