Abstract
A simple design of circular photonic crystal fiber (CPCF) filled with plasmonic nano rods is presented. The polarization characteristics and spectral losses of the proposed layout are examined using the Full - Vectorial Finite Element Method (FV-FEM). The reported design has the advantage of: highly form surface plasmon polariton (SPP) modes and highly polarization-dependency between the two guided quasi-modes. The polarization features of the CPCF can be enhanced by stuffing the air hole cladding. with several nano rods. The reported novel. structure can be used for filter design. It is found that at λ=0.85 µm, the quasi-TE mode loss. is equal to -10.02 dB/mm whereas it is only –15.01 dB/mm for the single.metal rod TM mode. On the other hand, the incensement of the losses for double nano rods is equal to-69.21 dB / mm for quasi-TE mode and -14.19 dB / mm for quasi-TM mode at λ=0.8 µm.
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