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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Enhancement of optical birefringence in tellurite glasses containing silver nanoparticles induced via thermal poling
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Enhancement of optical birefringence in tellurite glasses containing silver nanoparticles induced via thermal poling

机译：通过热极化诱导包含银纳米颗粒的碲酸盐玻璃的光学双折射增强

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摘要

Wavelength-selective enhancement of optical birefringence has been observed in a tellurite glass containing silver nanoparticles (Ag NPs) induced via thermal poling. The birefringence appears as an optical rotation of linearly polarized light; a large optical rotation is observed at around the wavelength of localized surface plasmon resonance (LSPR) of Ag NPs. The optic axis is oriented along the electric field applied during the thermal poling, suggesting that birefringence induced in the glass matrix through the thermal poling is drastically enhanced by the NPs at around the LSPR. Because of the birefringence of the matrix, the wavelength of LSPR shifts depending on the polarization state of the incident light, which in turn induces the polarization dependence of the real part of the refractive index via the Kramers-Kronig relation.
机译：在通过热极化诱导的包含银纳米颗粒（Ag NPs）的碲酸盐玻璃中，观察到了光学双折射的波长选择性增强。双折射表现为线性偏振光的旋光;在Ag NP的局部表面等离振子共振（LSPR）的波长附近观察到较大的旋光。光轴沿着在热极化期间施加的电场定向，这表明通过热极化在玻璃基质中引起的双折射会被LSPR附近的NP大大增强。由于矩阵的双折射，LSPR的波长根据入射光的偏振态而变化，这又通过Kramers-Kronig关系引起了折射率实部的偏振依赖性。

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