非共线二次谐波法测量氧化锌薄膜的光轴倾斜
Evaluation of the optical axis tilt of Zinc oxide films via noncollinear second harmonic generation
摘要：
研究了用双离子束溅射技术在玻璃衬底上生长的氧化锌薄膜的非共线二次谐波产生。在一个固定的入射角，所产生的信号进行了研究，通过扫描的偏振状态的两个基本光束。我们表明，所产生的信号作为两个泵浦光束的偏振态的函数的映射，连同分析曲线，允许检索光轴的取向，并最终检索其相对于表面法线的角度倾斜
英文摘要：
We investigated noncollinear second harmonic generation form Zinc oxide films, grown on glass substrates by dual ion beam sputtering technique. At a fixed incidence angle, the generated signal is investigated by scanning the polarization state of both fundamental beams. We show that the map of the generated signal as a function of polarization states of both pump beams, together with the analytical curves, allows to retrieve the orientation of the optical axis and, eventually, its angular tilt, with respect to the surface normal
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