Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system

doi:10.1088/1674-1056/17/11/052

中国物理B ›› 2008, Vol. 17 ›› Issue (11): 4273-4278.doi: 10.1088/1674-1056/17/11/052

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system

程营, 黄巧建, 刘晓峻

Key Laboratory of Modern Acoustics of Ministry of Education, Nanjing University, Nanjing 210093, China

收稿日期:2008-01-11 修回日期:2008-04-28 出版日期:2008-11-20 发布日期:2008-11-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos 10374041 and 10574071).

Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system

Cheng Ying (程营), Huang Qiao-Jian (黄巧建), Liu Xiao-Jun (刘晓峻)

Key Laboratory of Modern Acoustics of Ministry of Education, Nanjing University, Nanjing 210093, China

Received:2008-01-11 Revised:2008-04-28 Online:2008-11-20 Published:2008-11-20
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos 10374041 and 10574071).

摘要/Abstract

摘要： This paper uses finite element method to obtain the three-dimensional temperature field of laser-induced transient thermal grating (TTG) for two-layered structure of diamond film on ZnSe substrate. The numerical results indicate that unique two-times heating process is gradually experienced in the area between two adjacent grating stripes. However, there is a little change for the temperature field along the depth direction for the diamond film due to its great thermal conductivity. It further finds that the thickness of the diamond film has a significant influence on the temperature field in diamond/ZnSe system. The results are useful for the application of laser-induced TTG technique in film/substrate system.

Abstract: This paper uses finite element method to obtain the three-dimensional temperature field of laser-induced transient thermal grating (TTG) for two-layered structure of diamond film on ZnSe substrate. The numerical results indicate that unique two-times heating process is gradually experienced in the area between two adjacent grating stripes. However, there is a little change for the temperature field along the depth direction for the diamond film due to its great thermal conductivity. It further finds that the thickness of the diamond film has a significant influence on the temperature field in diamond/ZnSe system. The results are useful for the application of laser-induced TTG technique in film/substrate system.

Key words: thermal analysis, transient thermal grating, diamond/ZnSe, finite element method

中图分类号: (Nonelectronic thermal conduction and heat-pulse propagation in solids;thermal waves)

66.70.-f

68.55.-a (Thin film structure and morphology) 68.60.Dv (Thermal stability; thermal effects) 78.66.Hf (II-VI semiconductors)

程营, 黄巧建, 刘晓峻. Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system[J]. 中国物理B, 2008, 17(11): 4273-4278.

Cheng Ying (程营), Huang Qiao-Jian (黄巧建), Liu Xiao-Jun (刘晓峻). Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system[J]. Chin. Phys. B, 2008, 17(11): 4273-4278.

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Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system

Finite element analysis of three-dimensional laser-induced transient thermal grating in diamond/ZnSe system

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