Microparticle-based persistent spectral hole-burning memory at room temperature

Persistent spectral hole burning with multiplicity was realized at room temperature for Nile blue molecules-doped polymeric dielectric spherical microparticles based on morphology-dependent resonances. Hole parameters depending on burning conditions were studied. Dynamical characteristic behavior of hole formation was measured and analyzed with a model based on rate equations. The effective hole formation rate was obtained by simulation. Photophysical and photochemical mechanisms of the room temperature hole burning for this system was discussed.