DFWM PROPERTIES IN AZO DYE POLYMER FILM
偶氮掺杂聚合物薄膜四波混频特性研究

Degenerate four-wave mixing properties of azo dye polymer film were studied. The optical storage mechanism of material mainly originates from trans-to-cis isomerization of azo molecules by illuminating with a resonant light. Real-time and permanent optical storage time constants, and the optimal writing beam intensity were given.