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飞秒超快瞬态吸收

瞬态吸收技术可分为早期的纳秒闪光光解和后起之秀飞秒瞬态吸收,这是一种基于泵浦-探测(pump-probe)的思想发展而来的动力学表征的光谱手段。测试中,泵浦光启动样品中光物理化学过程,调节其延迟时间,用探测光记录不同延迟时间下激发态粒子的布居状况,从而得到物质分子从激发态向其他低能级或基态跃迁的详细动力学过程。因此,瞬态吸收技术可以探测不同状态样品(溶液,薄膜,晶体,MOF,纳米悬浮液等)的激发态能级之间的跃迁路线及跃迁速率,其一大特色是能给出分子激发态在可探测延迟时间内的全部跃迁过程,尤其是飞秒瞬态吸收提供了超快飞秒、皮秒尺度上的跃迁过程,包括常见的能量转移、电子转移、Trap态及Dark态等的物理学过程,是光伏、显示及纳米材料领域内解释现象及深度机理的关键性工具。

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Lab Master

Gender : Male

Alma Mater : 山东大学

Education Level : With Certificate of Graduation for Doctorate Study

Degree : Doctor

Status : Employed

School/Department : 物理学院

Date of Employment : 2013-08-09

Faculty/School : School of Physics

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