Acoustic Energy Regulation and Quality Factor Improvement in Acoustic Liquid Sensors by Optimized Structural Design
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概要
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We report acoustic sensors for liquid detection by designing a composite structure. By controlling the substrate thickness and the wavelengths are at the same order, the longitudinal wave energy is regulated and the peak values of the quality factor Q up to 1270 are realized. Meanwhile, part of the energy is regulated by two pairs of optimized Bragg reflecting structures in which the functions of the liquid layer are enhanced and Q becomes more stable relative to the thickness of the micro-channel. These features present conveniences for fabrications and give high sensitivities in liquid environments.
- 2013-08-25
著者
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Zhang Shu-yi
Laboratory of Modem Acoustics and Institute of Acoustics, Nanjing University
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Zhang Hui
Laboratory Of Transient Physics Nanjing University Of Science And Technology
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Fan Li
Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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Jiang Guo-zhu
Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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Liu Zhao-qun
Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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Zhang Hui
Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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Zhang Shu-yi
Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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