中文摘要：

讨论了稳态条件下，反饱和吸收的偶氮苯分子光学双稳态的开关性能．先根据偶氮苯光致异构的理论模型，计算了影响偶氮苯反饱和吸收系数的因素，然后理论模拟其反饱和吸收的光学双稳态开关过程．模拟结果表明：基于偶氮苯分子的反饱和吸收可实现双稳态全光开关．增大偶氮苯分子的顺式基态吸收截面，减小热弛豫系数K能够降低反饱和吸收偶氮苯光学双稳态的开关能量；反式吸收截面大不利于反饱和吸收光学双稳态的形成．

英文摘要：

The characteristic of optical bistability switching of azobenzene molecules is discussed. First, we compute the coefficient of reverse saturable absorption based on the model of photoisomerization of azobenzene molecules. Second,we simulate and compute the process of bistability switching based on reverse saturable absorption. The result shows that the reverse saturable absorption based on photoisomerization of azobenzene molecules can realize full optical switches of bistability. We also discusse the Trans isomer σT, the Cis isomer σC and the thermal constant K to the optical bistability influence.