【摘要】 本文对偶氮侧基聚合物相位共轭光时间特性进行了研究，得到了相位共扼光产生机制─光致异构过程的时间常数．在相位共轭光上升阶段，其时间常数在0．4～0．5s之间，在相让共轭光的衰减过程，衰减满足双指数关系，分段拟合得到较好的结果，且得到快过程的时间常数为0．27s，慢过程的时间常数为0．78s．更多还原

【Abstract】 The kinetics of photoinduced isomerization of azobenzene groups was studied by measuring the time response of phase conjugate beam. It was found that the response parameter of isomerization at the start stage is 0. 4~0. 5s,and the decays of azobenzene groups contain two process and obey the two-exponent law with 0. 27s as the lifetime of the quicker process and 0. 78s as the lifetime of slower one.更多还原