Surface Plasmon Mode Coupling in Photonic Crystal Fiber Symmetrically Filled with Ag/Au Alloy Wires
Source abstract
Abstract
The surface plasmon mode coupling in photonic crystal fiber filled with Ag/Au alloy wires into two symmetrical cladding air holes have been numerically investigated using the finite element method. For the cases of pure noble metal silver and gold, they exhibit similar polarization characteristics. The coupling strongly depends on the complex indices of the core mode and surface plasmon polaritons mode. Ag/Au alloy decreases the refractive index of surface plasmon mode and significantly increases the loss at longer wavelength. What should be paid a special attention is that there is a surge in loss of y-polarized direction in the case of very low Au-doped alloy, loss up to 309.14 dB/cm, and the full width half maximum of 9 nm can be achieved. The results match well with the approximate interpretation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Photonic Crystal and Fiber Optics · Advanced Fiber Optic Sensors · Optical Network Technologies
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References (18)
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