论文标题
通过光脉冲激发的金属中的电子电子和电子 - 光子松弛
Electron-electron and electron-phonon relaxation in metals excited by optical pulse
论文作者
论文摘要
介绍了用短激光脉冲激发的金属中弛豫过程描述的理论模型的简短概述。主要的工作是对吸收激光脉冲后发生的不同过程的描述。讨论了广泛使用的两个温度模型，并确定了该模型的适用性条件。讨论了解决Boltzmann动力学方程的各种方法。据确定，在低激发限制的情况下，松弛是通过光激发电子的发声来确定的。讨论了从实验中获得电子声子耦合常数值的可能性。
A short overview of theoretical models for the description of the relaxation processes in metals excited by a short laser pulse is presented. The main effort is given to description of different processes which are taking place after absorption of the laser pulse. Widely used two temperature model is discussed and the conditions of applicability of this model are identified. Various approaches for solving the Boltzmann kinetic equations are discussed. It is identified that in the case of low excitation limit the relaxation is determined by the emission of phonons by photoexcited electrons. The possibility to obtain the value of the electron phonon coupling constant from experiments is discussed.
