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Dual Photonic–Phononic Crystal Slot Nanobeam with Gradient Cavity for Liquid Sensing
Crystals ( IF 2.7 ) Pub Date : 2020-05-25 , DOI: 10.3390/cryst10050421 Nan-Nong Huang , Yi-Cheng Chung , Hsiao-Ting Chiu , Jin-Chen Hsu , Yu-Feng Lin , Chien-Ting Kuo , Yu-Wen Chang , Chun-Yu Chen , Tzy-Rong Lin
Crystals ( IF 2.7 ) Pub Date : 2020-05-25 , DOI: 10.3390/cryst10050421 Nan-Nong Huang , Yi-Cheng Chung , Hsiao-Ting Chiu , Jin-Chen Hsu , Yu-Feng Lin , Chien-Ting Kuo , Yu-Wen Chang , Chun-Yu Chen , Tzy-Rong Lin
A dual photonic–phononic crystal slot nanobeam with a gradient cavity for liquid sensing is proposed and analyzed using the finite-element method. Based on the photonic and phononic crystals with mode bandgaps, both optical and acoustic waves can be confined within the slot and holes to enhance interactions between sound/light and analyte solution. The incorporation of a gradient cavity can further concentrate energy in the cavity and reduce energy loss by avoiding abrupt changes in lattices. The newly designed sensor is aimed at determining both the refractive index and sound velocity of the analyte solution by utilizing optical and acoustic waves. The effect of the cavity gradient on the optical sensing performance of the nanobeam is thoroughly examined. By optimizing the design of the gradient cavity, the photonic–phononic sensor has significant sensing performances on the test of glucose solutions. The currently proposed device provides both optical and acoustic detections. The analyte can be cross-examined, which consequently will reduce the sample sensing uncertainty and increase the sensing precision.
中文翻译:
具有梯度腔的双光子-声子晶体槽纳米束,用于液体传感
提出了一种带有梯度腔的双光子-声子晶体缝隙纳米束,用于液体传感,并使用有限元方法进行了分析。基于具有模式带隙的光子和声子晶体,可以将光波和声波限制在缝隙和孔中,以增强声音/光与分析物溶液之间的相互作用。通过避免晶格的突然变化,引入梯度腔可以进一步将能量集中在腔中,并减少能量损失。新设计的传感器旨在通过利用光波和声波来确定分析物溶液的折射率和声速。彻底检查了腔梯度对纳米光束的光学传感性能的影响。通过优化梯度腔的设计,光子-声子传感器在葡萄糖溶液测试中具有显着的传感性能。当前提出的设备提供光学和声学检测。可以对分析物进行交叉检查,因此将减少样品感测的不确定性并提高感测精度。
更新日期:2020-05-25
中文翻译:
具有梯度腔的双光子-声子晶体槽纳米束,用于液体传感
提出了一种带有梯度腔的双光子-声子晶体缝隙纳米束,用于液体传感,并使用有限元方法进行了分析。基于具有模式带隙的光子和声子晶体,可以将光波和声波限制在缝隙和孔中,以增强声音/光与分析物溶液之间的相互作用。通过避免晶格的突然变化,引入梯度腔可以进一步将能量集中在腔中,并减少能量损失。新设计的传感器旨在通过利用光波和声波来确定分析物溶液的折射率和声速。彻底检查了腔梯度对纳米光束的光学传感性能的影响。通过优化梯度腔的设计,光子-声子传感器在葡萄糖溶液测试中具有显着的传感性能。当前提出的设备提供光学和声学检测。可以对分析物进行交叉检查,因此将减少样品感测的不确定性并提高感测精度。