In this problem, the photothermal excitation processes and thermal conductivity of a semiconducting elastic medium due to the change in the temperature effect are studied. The dual-phase-lag (DPL) model and Lord–Shulman (LS) theory are used to formulate and discuss the one-dimensional governing equations of the problem. The thermal ramp type is applied to the load-free surface of the medium. The complete solutions for some physical fields are obtained using the Laplace transform method. Comparisons between the results of thermal memory and variable thermal conductivity are also introduced. The effects of the medium physical fields are illustrated and discussed graphically.

在这个问题中，研究了半导体弹性介质由于温度效应的变化而引起的光热激发过程和热导率。双相位滞后 (DPL) 模型和 Lord-Shulman (LS) 理论用于制定和讨论问题的一维控制方程。热斜坡类型应用于介质的无负载表面。一些物理场的完整解是使用拉普拉斯变换方法获得的。还介绍了热记忆和可变热导率结果的比较。介质物理场的影响以图形方式说明和讨论。