Using a strong nonlinear saturation absorption effect is one technique for breaking through the diffraction limit. In this technique, formation of a dynamic and reversible optical pinhole channel and transient superresolution is critical. In this work, a
A novel single-polarization single-mode photonic crystal fiber (SPSM-PCF) with circular and elliptical air-holes is proposed. The characteristics of the proposed SPSM-PCF are investigated by using a full-vector finite element method (FEM) with perfect mat