A Temperature Sensor Based on a Symmetrical Metal-Cladding Optical Waveguide
ZHOU Guo-Rui1, FENG Guo-Ying1**, ZHANG Yi1, MA Zi2, WANG Jian-Jun3
1Department of Opto-Electronics, College of Electronics and Information Engineering, Sichuan University, Chengdu 610064 2Southwest Institute of Technical Physics, Chengdu 610041 3Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900
A Temperature Sensor Based on a Symmetrical Metal-Cladding Optical Waveguide
ZHOU Guo-Rui1, FENG Guo-Ying1**, ZHANG Yi1, MA Zi2, WANG Jian-Jun3
1Department of Opto-Electronics, College of Electronics and Information Engineering, Sichuan University, Chengdu 610064 2Southwest Institute of Technical Physics, Chengdu 610041 3Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900
摘要A compact temperature sensor based on a symmetrical metal-cladding optical waveguide using free-space coupling is proposed and demonstrated theoretically and experimentally. The symmetrical Au-cladding optical waveguide is based on a thin LiNbO3 slab sandwiched between two metal films, which serve as the coupling layer and reflecting panel, respectively. The sensitivity of this sensor of 9.08×10−2 deg/°C, 6.6×10−2 deg/°C and 4.8×10−2 deg/°C corresponding to 3238−order, 3237-order and 3236-order modes, respectively, are obtained. Higher resolution is predicted with a larger linear expansion coefficient material and a higher resolution θ/2θ goniometer.
Abstract：A compact temperature sensor based on a symmetrical metal-cladding optical waveguide using free-space coupling is proposed and demonstrated theoretically and experimentally. The symmetrical Au-cladding optical waveguide is based on a thin LiNbO3 slab sandwiched between two metal films, which serve as the coupling layer and reflecting panel, respectively. The sensitivity of this sensor of 9.08×10−2 deg/°C, 6.6×10−2 deg/°C and 4.8×10−2 deg/°C corresponding to 3238−order, 3237-order and 3236-order modes, respectively, are obtained. Higher resolution is predicted with a larger linear expansion coefficient material and a higher resolution θ/2θ goniometer.
(Thermal properties of small particles, nanocrystals, nanotubes, and other related systems)
引用本文:
ZHOU Guo-Rui1, FENG Guo-Ying1**, ZHANG Yi1, MA Zi2, WANG Jian-Jun3. A Temperature Sensor Based on a Symmetrical Metal-Cladding Optical Waveguide[J]. 中国物理快报, 2012, 29(2): 26501-026501.
ZHOU Guo-Rui, FENG Guo-Ying, ZHANG Yi, MA Zi, WANG Jian-Jun. A Temperature Sensor Based on a Symmetrical Metal-Cladding Optical Waveguide. Chin. Phys. Lett., 2012, 29(2): 26501-026501.
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