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Poled Silica/DR1 Films with Thermally Stability and Large Electro-Optic Coefficient Applying in External Probe Tip
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Sol-gel-processed silica films doped with Disperse Red 1(DR1) were prepared at 80℃ aging temperature and 120℃ baking temperature with corona poling to obtain stable and large electro-optic (EO) coefficient and film strength. A large EO coefficient of γ33 = 56 pm/V was measured for the film of 05μm thickness at the wavelength of 1300nm, and the value was unvaried at room temperature. Moreover, an external EO probe tip using the film was fabricated for the first time, and a signal voltage level corresponding to the EO signal was calibrated successfully. 相似文献
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