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通过简并四波混频法（ＤＦＷＭ）对“聚［３′－甲基－４′—二（Ｎ，Ｎ－氧亚乙基）胺基－４－硝基偶氮苯癸二酰］”薄膜的光致导构过程的研究，测得在上升和下降过程中，相位共轭光Ｉｐｃ随时间的变化规律并与理论结果相吻合．
“Poly [3’-methyl-4’-bis (N, N-oxyethylidene) amino-4-nitroazobenzene sebacate]” was synthesized by degeneracy four wave mixing (DFWM) The photoconducting process of the films was studied. The variation law of the phase conjugate light Ipc with time was measured during the ascending and descending steps and coincided with the theoretical results.