Surface plasmon resonance-induced tunable polarization filters based on nanoscale gold film-coated photonic crystal fibers<xref rid="cpb_26_10_104211_fn1" ref-type="fn">*</xref><fn id="cpb_26_10_104211_fn1"><label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 61505175 and 61475134) and the Natural Science Foundation of Hebei Province, China (Grant Nos. F2017203110 and F2017203193).</p> </fn>

Surface plasmon resonance-induced tunable polarization filters based on nanoscale gold film-coated photonic crystal fibers**

Project supported by the National Natural Science Foundation of China (Grant Nos. 61505175 and 61475134) and the Natural Science Foundation of Hebei Province, China (Grant Nos. F2017203110 and F2017203193).

Liu Yingchao, Chen Hailiang^†, Li Shuguang, Liu Qiang, Li Jianshe

(color online) Cross section of the proposed PCF polarization filter. The background material is pure silica glass. The air hole with the diameter of d₃ is coated with gold film and the two air holes with the diameter of d₂ are filled with liquid. The diameter of the microstructure area of the designed fiber is 22 μm.