本发明公开了一种反射式TFBGSPR折射率传感器,由宽带光源,光纤环形器,待测样品池,双锥形TFBG传感探头,金纳米薄膜,光谱分析仪组成.宽带光源发出的光经光纤环形器到达探入待测样品池中的双锥形TFBG传感探头,双锥形TFBG传感探头是表面镀有金纳米薄膜,由锥腰直径45微米的双锥形结构与倾角10度,栅长20毫米的TFBG级联而...
TFBG sensorRefractometrySpatial frequency spectrumSurface plasmon resonance-tilted fiber Bragg gratings (SPR-TFBG) are known for their ultra-high sensitivity to various liquid measurands. However, the deposition angle of the gold film on TFBG being one of the critical fabrication parameters remains ...
本发明公开了一种基于TFBG?SPR的蛋白质检测光纤传感器,由宽带光源,偏振控制器,传输光纤,传感器,TFBG,表面生物分子识别膜,光谱仪组成.宽带光源和偏振控制器相连,偏振控制器通过传输光纤与传感器左端相连,传感器右端通过传输光纤与光谱仪相连.宽带光源发射的光束通过偏振控制器调整偏振态后入射到传感器中,由于传感器内刻有...
A high speed TFBG-SPR sensing demodulation system based on microwave photonics interrogation is proposed theoretically. The wavelength shifting of the SPR envelope in optical domain is converted to the microwave pulse shifting in time domain. The RI resolution is improved by one order of magnitude ...
The TFBG serves as a sensing part, and compared with a common optical fiber SPR sensor, the SPR biosensor disclosed by the invention has the advantages that the wavelength of the light source is simply changed, any mode of emitting light to a fiber core-cladding layer at different angles ...
本文提出了一种基于FBG的探针式倾斜光纤光栅表面等离子体共振(TFBG-SPR)应变传感器,用于同时测量温度和应变.该传感器利用SPR损耗峰作为温度传感单元,并采用倾斜光栅纤芯模式作为应变传感单元.通过观测共振峰的偏移及纤芯模式波长的变化,实现了对应变和温度变化的监测.实验结果显示,该传感器的温度灵敏度可达到-251.3pm/℃,...
As is known, TFBG can provide an effective mean to easily excite the surface plasmon resonance (SPR) phenomenon while the fiber is coated with metal layer. By measuring the evolution of spectra, the SPR properties hence the surface perturbation could be detected accurately. To achieve highly ...
本发明公开了一种基于TFBGSPR的弱电流检测光纤传感器,由光源,偏振控制器,传输光纤,传感器,TFBG,纳米金涂层,光谱仪,第一电极和第二电极组成.光源和偏振控制器相互连接,然后通过传输光纤连接于传感器的左端,传感器的右端与光谱仪相连接,第一电极与传感器表面的纳米金涂层的左端相连接,第二电极与传感器表面的纳米金涂层...
本实用新型公开了一种基于TFBGSPR的蛋白质检测光纤传感器,由宽带光源,偏振控制器,传输光纤,传感器,TFBG,表面生物分子识别膜,光谱仪组成.宽带光源和偏振控制器相连,偏振控制器通过传输光纤与传感器左端相连,传感器右端通过传输光纤与光谱仪相连.宽带光源发射的光束通过偏振控制器调整偏振态后入射到传感器中,由于传感器内刻...
The multi-channel optical fiber sensor based on TFBG-SPR consists of a wideband light source, a polarization controller, a first sensor, a first chromium-gold film, a first TFBG, a second sensor, a second chromium-gold film, a second TFBG, a third sensor, a third chromium-gold film, ...