On the relation between the echo-peak shift and Brownian-oscillator correlation function
On the relation between the echo-peak shift and Brownian-oscillator correlation function
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DOI：
10.1016/0009-2614(96)00207-2
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发表时间：
1996-04-26
影响因子：
2.8
通讯作者：
Wiersma, DA
中科院分区：
文献类型：
--
作者：
deBoeij, WP;Pshenichnikov, MS;Wiersma, DA
我们表明，对于系统，表现出双峰动态在其系统浴相关函数的受激光子回波最大值的变化作为等待时间的函数，反映了相当好的相关函数的长时间部分。对于早期，由于在该时域中的回波峰值偏移的根本不同的行为以及由于有限脉冲持续时间对回波峰值偏移的影响，这种对应关系被破坏。该方法用于表征各种染料溶液中的溶剂化动力学。
We show that for systems that exhibit bimodal dynamics in their system-bath correlation function the shift of the stimulated photon-echo maximum as a function of waiting time reflects fairly well the long time part of the correlation function. For early times this correspondence breaks down due to a fundamentally different behaviour of the echo-peak shift in this time domain and because of the effect of finite pulse duration on the echo-peak shift. The method is used to characterize the solvation dynamics in various dye solutions.