Abstract
Based on the experimental results, three basic conclusions are summarized for the thermal/electric-field poling (TEFP) silica materials, with which the second-order nonlinear optical coefficient in the bulk silica glass after TEFP is calculated, and relationships between the coefficient and the applied voltage V 0 in the poling process and the thickness of the nonlinear layer created from the poling are obtained. Theoretical results show that the second-order susceptibility χ(2) and the second-harmonic efficiency η in the poled bulk glass are proportional to √V 0 and V 20 , respectively; χ(2)∼0.2−1.6 pm/V for the bulk glass after the typical TEFP; χ(2) decreases with an increase in the poling time after the TEFP silica glass approximately reaches the steady state. Theoretical results are well consistent with the experimental reports.
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Liu, X., Zheng, X., Guo, Y. et al. Theoretical analysis of thermal/electric-filed poling silica glass. Sci. China Ser. E-Technol. Sci. 45, 646–653 (2002). https://doi.org/10.1360/02ye9073
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DOI: https://doi.org/10.1360/02ye9073