In recent
decades years, the related studies have indicated that the nanoparticles
doped fiber possess many excellent properties and been
used for the nano-lasers with high excitation efficiency [9–11],
where the resonators (with the high energy convert efficiency,
ultra-compact bending diameter and tight optical confinement)
can be fabricated through micro-manipulating the flexible nanofibers;
the nano-sensors with high sensitivity [12–14], where the
fast molecular diffusion and strong evanescent field near the
nano-fibers can be used to sense the environment parameter
change with a fast response time and high sensitivity; the energy
storage with high capacitive performance [15–20], where the porous
nano-fibers based electrodes can efficiently store the energy
with a highly conductive, low density scaffold and high percent
void space; as well as other optical devices [21,22]