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Second harmonic generation investigation on electric poling effects in fused silica |
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| Authors: | Jianhua Xu Xingze Lu Hongbing Chen Liying Liu Wencheng Wang Congshan Zhu Fuxi Gan |
| Affiliation: | a State Key Joint Laboratory for Materials Modification by Laser, Ion and Electron Beams, Department of Physics, Fudan University, Shanghai 200433, China b Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
| Abstract: | The influence of electric of poling conditions on the optical nonlinearity of fused silica has been investigated by the second harmonic generation (SHG) technique. The SHG intensity of the poled fused silica increased monotonically with increasing the poling voltage or poling time, and reached a maximum at a poling temperature of T = 250°C, but the SHG intensity decreased quickly as the thermal erasure time increased. The experimental results have been explained using an electric field induced dipole orientation model. |
| Keywords: | Fused silica Electrical poling Second harmonic generation (SHG) |
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