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) The Confinement loss of the core mode dependence on the operable wavelength λ at different structural parameters (a) d₁ = 2.4, 2.6 μm, (b) d₂ = 2.2, 2.4 μm, (c) d₃ = 0.8, 1.2, 1.4 μm, (d) t = 30, 40, 50 nm. The other structural parameters are d = 1.2 μm, Λ = 2 μm. The analysis helps us to alter the structural parameters or liquid index to realize the polarization filter at certain wavelength.