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In-line high efficient fiber polarizer based on surface plasmon
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) (a) Sketch of the experimental setup: Polarized light is loaded and detected at the two port of standard fiber, in the center is a tapered fiber contact with a metal film. (b) and (c) show the electric field distribution on the cross section of the fiber and the metal film for TM and TE mode light, arrows represent the direction of electric field. The parameters of simulation are: the radius of tapered fiber is 500 nm, the thickness of Au film is 50 nm, and the working wavelength is 632.8 nm.

Image of FIG. 2.
FIG. 2.

(Color online) Energy attenuation (upper) of both modes and extinction ratio (lower) are changed with contact length of nanofiber on the metal surface.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Relationship of output intensity and polarization of input light. (b) and (c) are dark field CCD pictures with TE and TM modes input light, respectively. The scale bar in (c) is 50 μm. Symmetric mirror images are appear since light reflect at the Au film (mirror).

Image of FIG. 4.
FIG. 4.

(Color online) Propagation length of TE and TM modes against the wavelength of input light.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: In-line high efficient fiber polarizer based on surface plasmon