A novel design is proposed for highly sensitive surface-plasmon-resonance sensors. The sensor is based on a microstructured optical fiber with two layers of annular-shaped holes. A gold layer is deposited on the inner...A novel design is proposed for highly sensitive surface-plasmon-resonance sensors. The sensor is based on a microstructured optical fiber with two layers of annular-shaped holes. A gold layer is deposited on the inner surface of the second hole-layer, in which the holes have several micrometers thickness in size, facilitating analyte infiltration and metal layer deposition. In the first layer of holes, the sector-ring^shaped arms, used as supporting strips, are utilized to tune the resonance depth of the sensor. Numerical results indicate that the sensor operation wavelength can be tuned across the C＋L-band. The spectral sensitivity of 1.0.104 nm. RIU-1 order of magnitude and a detection limit of 1.0.10-4 RIU order are demonstrated over a wide range of analyte refractive index from 1.320 to 1.335.展开更多
新能源发电与氢能相结合是实现“碳达峰”与“碳中和”目标的重要途径之一,其中,电力电子变换器被广泛应用。配电网非线性负荷导致的谐波污染具有分散化的特点,而现有的有源电力滤波器(Active Power Filter,APF)等谐波治理技术很难实现...新能源发电与氢能相结合是实现“碳达峰”与“碳中和”目标的重要途径之一,其中,电力电子变换器被广泛应用。配电网非线性负荷导致的谐波污染具有分散化的特点,而现有的有源电力滤波器(Active Power Filter,APF)等谐波治理技术很难实现对配电网各支路中分散化谐波的有效治理。基于配电网中广泛应用的单相整流器(Single Phase Rectifier,SPR),提出一种分布式谐波补偿控制策略,通过检测SPR输入电压实现谐波电流补偿,无需额外添加电流传感器。该控制策略可以在不改变局域配电网结构,以及不增加额外装置的前提下,使SPR变换器在保证自身功率稳定传输的同时,实现对外部谐波电流的有效补偿。搭建了一台400W样机,以验证理论分析的正确性与可行性。展开更多
基金supported by the Program Sponsored for Scientific Innovation Research of College Graduates in Jangsu Province,China(No.CXZZ12 0656)the Qing Lan Project of Jiangsu Province,Open Fund Supported by Jiangsu Provincial Key Laboratory for Science and Technology of Photon Manufacturing(Jiangsu University)of China(No.GZ201201)
文摘A novel design is proposed for highly sensitive surface-plasmon-resonance sensors. The sensor is based on a microstructured optical fiber with two layers of annular-shaped holes. A gold layer is deposited on the inner surface of the second hole-layer, in which the holes have several micrometers thickness in size, facilitating analyte infiltration and metal layer deposition. In the first layer of holes, the sector-ring^shaped arms, used as supporting strips, are utilized to tune the resonance depth of the sensor. Numerical results indicate that the sensor operation wavelength can be tuned across the C＋L-band. The spectral sensitivity of 1.0.104 nm. RIU-1 order of magnitude and a detection limit of 1.0.10-4 RIU order are demonstrated over a wide range of analyte refractive index from 1.320 to 1.335.
文摘新能源发电与氢能相结合是实现“碳达峰”与“碳中和”目标的重要途径之一,其中,电力电子变换器被广泛应用。配电网非线性负荷导致的谐波污染具有分散化的特点,而现有的有源电力滤波器(Active Power Filter,APF)等谐波治理技术很难实现对配电网各支路中分散化谐波的有效治理。基于配电网中广泛应用的单相整流器(Single Phase Rectifier,SPR),提出一种分布式谐波补偿控制策略,通过检测SPR输入电压实现谐波电流补偿,无需额外添加电流传感器。该控制策略可以在不改变局域配电网结构,以及不增加额外装置的前提下,使SPR变换器在保证自身功率稳定传输的同时,实现对外部谐波电流的有效补偿。搭建了一台400W样机,以验证理论分析的正确性与可行性。
