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Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
Published on: November 15, 2016
Dual-Modal Ionic Polymer Optical Waveguide Grating Sensor for Temperature and Humidity Detection
Yunlong Yu1, Huayue Zhao1, Yaping Song1
1State Key Laboratory of Integrated Optoelectronics, JLU Region, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P.R. China.
None:
In this work, a long-period grating (LPG) sensor for dual-modal detection applications using a metal-printing poly(ionic liquid)s (PILs) waveguide is proposed. High-sensitivity temperature and humidity monitoring based on free ionic dynamic mechanism are achieved by an optical-sensing module. The ionic thermal-optic (ITO) and ionic humid-optic (IHO) coefficients of featured PILs waveguide film are obtained as -9.3 × 10-4/K and -3.1 × 10-4/% RH, respectively. Both the top humidity sensing and bottom temperature sensing characteristics of the LPG sensor are realized, with a sensitivity of 650 nm/K and resolution of 0.01 K for temperature detection and a sensitivity of 1.05 nm/% RH and resolution of 1% RH for humidity detection, respectively. This optical sensing technique through photonic integrated circuits provides a potential prospect for on-chip multimodal parameter detection.
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