|
|||||
|
|
Characteristics of thermal distortions of the laser mirror substrates filled with phase-change materials |
|
| Authors: | Yufeng Peng Jinling Cui Zuhai Cheng Duluo Zuo Yaoning Zhang |
| Institution: | aCollege of Physics and Information Engineering, Henan Normal University, Xinxiang, Henan 453002, PR China bThe State Key Laboratory of Laser Technology, Huazhong University of Science & Technology, Wuhan, Hubei 430074, PR China |
| Abstract: | Under irradiating of the laser power of 2 kW, the thermal deformations of the silicon mirror substrates with phase change materials are experimentally measured and numerically analyzed by using finite element methods, respectively. The experimental results show that when the absorbed laser power is 120 W and the laser irradiating time gets to three seconds, the thermal distortion of the silicon mirror substrates with paraffin/carbon powder is 0.25 μm, that of the paraffin/aluminum powder 0.33 μm, and that of the paraffin/copper powder 0.37 μm. The numerical calculation coincides with the experimental results. |
| Keywords: | Mirrors Thermal distortion High-power lasers Phase-change material |
| 本文献已被 ScienceDirect 等数据库收录！ | |