Plasmon-type CO sensor based on In2O3(Sn) films

Viktoras V. Vaicikauskas; Regimantas Januskevicius; Erimijus Radavicius; Romas Antanavicius

doi:10.1117/12.266546

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4 February 1997 Plasmon-type CO sensor based on In₂O₃(Sn) films

Viktoras V. Vaicikauskas, Regimantas Januskevicius, Erimijus Radavicius, Romas Antanavicius

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Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997) https://doi.org/10.1117/12.266546
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

In₂O₃(Sn) film CO senors in the Kretschmann configuration were investigated using a rotating analyzer spectrometer. From the experimental surface plasmon resonance (SPR) angular dependencies, applying the best fit method complex dielectric permitivity of In₂O₃(Sn) films ((epsilon) equals 2.4-i0.2) were obtained. Under exposition of sensor by CO gas at 134 degrees Celsius temperature, SPR shifted to higher angles and sufficiently broadened. Most significant change possesses an imaginary part of dielectric permitivity -- after 0.8% CO exposition it becomes 4.1, whereas a real part equals to 1.2.

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Viktoras V. Vaicikauskas, Regimantas Januskevicius, Erimijus Radavicius, and Romas Antanavicius "Plasmon-type CO sensor based on In₂O₃(Sn) films", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997); https://doi.org/10.1117/12.266546

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