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本文研究了质子转移型有机分子 7-羟基喹啉在皮秒激光脉冲作用下的光开关现象。实验结果表明7-羟基喹啉在 35 5 nm的皮秒光脉冲的作用下对 488nm和 6 32 .8nm的光有明显的开关效应 ,而在 5 32nm的皮秒光脉冲的作用下无此效应。产生开关效应的原因是由于 7-羟基喹啉分子在激发态质子转移过程中生成的阳离子和阴离子具有较大的光学非线性。
In this paper, we study the optical switch phenomenon of proton transfer organic molecule 7-hydroxyquinoline under the picosecond laser pulse. The experimental results show that 7-hydroxyquinoline has obvious switching effect on 488nm and 632.8nm light under the effect of 35 5 nm picosecond light pulse and no effect under the 532 nm picosecond light pulse . The switching effect is due to the larger optical nonlinearity of the cations and anions generated by the 7-hydroxyquinoline molecules during the proton transfer of excited states.