材料科学
纳米线
光电子学
物理
拓扑(电路)
结晶学
电气工程
化学
工程类
作者
Wan Zhang,Shuqin Lou,Xin Wang,Shibo Yan,Zijuan Tang
标识
DOI:10.1109/jlt.2020.2974888
摘要
A ring-core photonic crystal fiber (PCF) embedded composite gold nanowire is proposed to propagate single TE 01 mode cylindrical vector beam. The ring-core PCF mainly supports six low loss modes including x-polarized fundamental mode, y-polarized fundamental mode, TE 01 mode, TM 01 mode, HE 21-e and HE 21-o modes. By introducing the composite gold nanowire into the center of the ring-core PCF, only the TE 01 mode can propagate through the fiber with a low loss; while the other modes suffer a high loss due to the surface plasmon resonance (SPR). Numerical results demonstrate that the ring-core PCF embedded with two-shell structured composite gold nanowire has large loss ratios of the other modes to TE 01 mode. The loss ratios are greater than or equal to 50 within the wavelength range from 1.3 to 1.39 μm. It indicates that single TE 01 mode cylindrical vector beam can be obtained by using the ring-core PCF based on SPR, which makes the fiber have a great potential in laser processing, nanotechnology, high resolution imaging and optical capture.
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