Effect of Surface Roughness on Laser Induced Nonlinear Optical Properties of Annealed ZnO Thin Films

材料科学技术（英文）, 2012, 28(6): 506-511.

Effect of Surface Roughness on Laser Induced Nonlinear Optical Properties of Annealed ZnO Thin Films

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Department of Physics, BMIET, Sonepat 131001, India Department of Physics, DCRUST, Murthal 131027 India

2.Materials Science Group, Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India

3.Department of Applied Physics, GJUS＆T, Hisar 125001, India

4.Department of Applied Physics, GJUS＆T, Hisar 125001, India

5.Department of Physics, DCRUST, Murthal 131027 India

6.School of Engineering and Technology, Sharda University, Greater Noida 201306, India

关键词：非线性光学性质 , ZnO薄膜 , 表面粗糙度 , 退火温度 , 激光诱导 , Nd：YAG激光 , 三阶非线性极化率 , X-射线衍射

Effect of Surface Roughness on Laser Induced Nonlinear Optical Properties of Annealed ZnO Thin Films

Vinay Kumari ^1, , Vinod Kuma ^2, , Devendra Mohan ^3, , Purnima ^4, , B.P. Malik ^5, , R.M. Mehra ^6,

1.Department of Physics, BMIET, Sonepat 131001, India Department of Physics, DCRUST, Murthal 131027 India

2.Materials Science Group, Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India

3.Department of Applied Physics, GJUS＆T, Hisar 125001, India

4.Department of Applied Physics, GJUS＆T, Hisar 125001, India

5.Department of Physics, DCRUST, Murthal 131027 India

6.School of Engineering and Technology, Sharda University, Greater Noida 201306, India

Keywords： ZnO films , Sol-gel , Annealing temperature , Nonlinear optical properties , Thirdorder nonlinear susceptibility , z-scan ,

Variation of nonlinear optical properties with surface roughness of ZnO thin films deposited on coming glass substrates at different annealing temperature （TA） was reported. The films were characterized by X-ray diffraction （XRD）, UV-Vis-NIR transmission and single beam z-scan technique using second harmonics of Nd：YAG laser. Surface morphology of the samples was investigated by atomic force microscopy （AFM）. Surface roughness was found minimum （8.4 nm） for ZnO sample annealed at 450℃. The nonlinear optical properties （NLO） were found to be dependent on surface roughness and the highest value of third order nonlinear susceptibility （X（3）=4.3x 10-7 esu） was obtained for ZnO at TA 450℃.

参考文献

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材料期刊网

Effect of Surface Roughness on Laser Induced Nonlinear Optical Properties of Annealed ZnO Thin Films

Effect of Surface Roughness on Laser Induced Nonlinear Optical Properties of Annealed ZnO Thin Films

参考文献