Optical properties of infrared femtosecond laser-modified fused silica and application to waveguide fabrication
Optical properties of infrared femtosecond laser-modified fused silica and application to waveguide fabrication
复制标题
红外飞秒激光改性熔融石英的光学特性及其在波导制造中的应用
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
L. Sarger
中科院分区：
文献类型：
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作者：
A. Zoubir;M. Richardson;L. Canioni;A. Brocas;L. Sarger
我们研究了熔融石英在强红外飞秒脉冲作用下光学性质的变化。激光诱导吸收光谱揭示了玻璃基质内色心的产生，与紫外线暴露的熔融石英中观察到的色心相当。激光诱导吸收与激光诱导折射率变化相关，这可用于波导制造。在这样的波导中的三阶极化率的变化是由三次谐波产生显微镜作为一个函数的照射参数测量。
We investigate the changes in the optical properties of fused silica exposed to intense infrared femtosecond pulses. The laser-induced absorption spectrum reveals the creation of color centers inside the glass matrix, comparable with those observed in ultraviolet-exposed fused silica. The laser-induced absorption is associated with a laser-induced refractive-index change, which can be used for waveguide fabrication. The change in third-order susceptibility in such waveguides is measured by third-harmonic-generation microscopy as a function of the irradiation parameters.