Silver layer thickness insensitive index sensor based on hollow core photonic crystal fiber
| Autor: | Peng Song, Hai-kun Zhang, Jing Wang, Pengpeng Wang, Cunguang Zhu, Cheng Zhou |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Physics::Optics 02 engineering and technology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Core (optical fiber) 020210 optoelectronics & photonics Spectral sensitivity Perfectly matched layer 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Optoelectronics Fiber Electrical and Electronic Engineering business Anisotropy Refractive index Plasmon Photonic-crystal fiber |
| Zdroj: | Optik. 160:333-339 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2018.01.095 |
| Popis: | We propose a silver layer thickness insensitive index sensor based on silver coated on the inner wall of the HC-PCF. Under the boundary condition of anisotropic perfectly matched layer (PML), a full-vector finite element method (FEM) is used to calculate the fiber model. Numerical results indicate that the excitation of the plasmon mode is sensitive to the change of the refractive index of the adjacent analyte. The confinement loss of the core guided mode increases when both the refractive index of the analyte and the thickness of the silver film do. The maximum spectral sensitivity of the sensor can be 7330 nm/RIU. Furthermore, the spectral sensitivity of the sensor doesn’t approximately change when the thickness of the silver film increases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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