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) Dispersion relation of core guided modes and SPP modes and confinement loss spectra of core modes. The structural parameters are d₁ = 2.6 μm, d₂ = 2.4 μm, d₃ = 1.2 μm, d = 1.2 μm, t = 30 nm, and Λ = 2 μm. The resonance wavelength in the Y-polarized direction is 1.31 μm and that in the X-polarized direction is 1.55 μm. The confinement loss of the Y-polarized and X-polarized core modes are 20305 dB/m and 19358 dB/m respectively.