材料科学
表面等离子共振
折射率
包层(金属加工)
芯(光纤)
光纤
分析物
等离子体子
光学
功勋
表面等离子体激元
波长
表面等离子体子
光纤传感器
光电子学
纤维
纳米技术
纳米颗粒
复合材料
物理
物理化学
化学
作者
Hemant Kumar,Umang Ramani,Raghvendra Kumar,Boor Singh,Praveen C. Pandey
标识
DOI:10.1142/s021798492450101x
摘要
A hollow-core D-shaped optical fiber-based surface plasmon resonance (SPR) sensor for low-loss and highly sensitive liquid analytes detection is theoretically investigated. The gold (Au) metal nanolayer is coated on the cladding etched D-shaped flat surface to develop the plasmonic effect. The nanolayer coating on the outer flat surface is very easy compared to the inside hollow-core, so our hollow-core sensor manufacturing is too easy compared to other hollow-core refractive indices (RIs) detection sensors. The resonance effect between analytes filled fundamental guided core mode and surface plasmon polariton mode of the D-shaped hollow-core optical fiber sensor is used to obtain the detections of analytes RIs variations. We have found good linear results ([Formula: see text]) in analytes RIs versus resonance wavelength for gold layers thicknesses for the analytes RIs range of 1.45–1.52. This hollow-core D-shaped optical fiber sensor achieves the maximum wavelength sensitivity of 23500[Formula: see text]nm RIU[Formula: see text] and a corresponding resolution of [Formula: see text] RIU. We have obtained the maximum figure of merit (FOM) of 228 1/RIU. The proposed sensor may be highly active in detecting the biological and chemical liquid analytes.
科研通智能强力驱动
Strongly Powered by AbleSci AI