Research Papers

Applied light-side coupling with optimized spiral-patterned zinc oxide nanorod coatings for multiple optical channel alcohol vapor sensing

[+] Author Affiliations
Hazli Rafis Bin Abdul Rahim

University of Malaya, Department of Electrical Engineering, Faculty of Engineering, 50603 Kuala Lumpur, Malaysia

University of Malaya, Photonics Research Centre, 50603 Kuala Lumpur, Malaysia

Universiti Teknikal Malaysia Melaka, Faculty of Electronic and Computer Engineering, 76100 Melaka, Malaysia

Muhammad Quisar Bin Lokman

University of Malaya, Department of Electrical Engineering, Faculty of Engineering, 50603 Kuala Lumpur, Malaysia

Sulaiman Wadi Harun

University of Malaya, Department of Electrical Engineering, Faculty of Engineering, 50603 Kuala Lumpur, Malaysia

University of Malaya, Photonics Research Centre, 50603 Kuala Lumpur, Malaysia

Gabor Louis Hornyak

Asian Institute of Technology, Center of Excellence in Nanotechnology, 12120 Patumthani, Thailand

Karel Sterckx, Waleed Soliman Mohammed

Bangkok University, Center of Research in Optoelectronics, Communication and Control Systems (BU-CROCCS), School of Engineering, 12120 Patumthani, Thailand

Joydeep Dutta

KTH Royal Institute of Technology, Chair of Functional Materials Division, Stockholm SE-100 44, Sweden

J. Nanophoton. 10(3), 036009 (Aug 08, 2016). doi:10.1117/1.JNP.10.036009
History: Received March 22, 2016; Accepted July 18, 2016
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Abstract.  The width of spiral-patterned zinc oxide (ZnO) nanorod coatings on plastic optical fiber (POF) was optimized theoretically for light-side coupling and found to be 5 mm. Structured ZnO nanorods were grown on large core POFs for the purpose of alcohol vapor sensing. The aim of the spiral patterns was to enhance signal transmission by reduction of the effective ZnO growth area, thereby minimizing light leakage due to backscattering. The sensing mechanism utilized changes in the output signal due to adsorption of methanol, ethanol, and isopropanol vapors. Three spectral bands consisting of red (620 to 750 nm), green (495 to 570 nm), and blue (450 to 495 nm) were applied in measurements. The range of relative intensity modulation (RIM) was determined to be for concentrations between 25 to 300 ppm. Methanol presented the strongest response compared to ethanol and isopropanol in all three spectral channels. With regard to alcohol detection RIM by spectral band, the green channel demonstrated the highest RIM values followed by the blue and red channels, respectively.

© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Hazli Rafis Bin Abdul Rahim ; Muhammad Quisar Bin Lokman ; Sulaiman Wadi Harun ; Gabor Louis Hornyak ; Karel Sterckx, et al.
"Applied light-side coupling with optimized spiral-patterned zinc oxide nanorod coatings for multiple optical channel alcohol vapor sensing", J. Nanophoton. 10(3), 036009 (Aug 08, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.036009


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