Giant Enhancement of Optical Second Harmonic in Poled Glasses by Cold Repoling,The Journal of Physical Chemistry Letters

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Giant Enhancement of Optical Second Harmonic in Poled Glasses by Cold Repoling
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2022-06-22 , DOI: 10.1021/acs.jpclett.2c01440
Ilya Reshetov _{1,

2} , Sergey Scherbak _{1,

2} , Dmitry Tagantsev _{1,

2} , Valentina Zhurikhina _{1,

2} , Andrey Lipovskii _{1,

2}

Affiliation

For the first time, we demonstrated that additional poling at room temperature (cold repoling) of a soda-lime glass thermally poled in open anode configuration causes an increase of the optical second harmonic signal by more than an order of magnitude. Performed experiments allow relating this increase in the optical nonlinearity of the glass to the orientation of hydrogenated dipoles in the vicinity of the glass surface. This indicates that both frozen electric field and dipole orientation are responsible for the nonlinearity of thermally poled alkali-containing glasses. Observed dipole orientation in glasses is of interest for molecular physics and electrodynamic studies.

中文翻译：

通过冷再极化极大地增强了极化玻璃中的光学二次谐波

我们首次证明，在开放阳极配置中热极化的钠钙玻璃在室温下的额外极化（冷再极化）会导致光学二次谐波信号增加一个数量级以上。进行的实验允许将玻璃的光学非线性的这种增加与玻璃表面附近的氢化偶极子的取向联系起来。这表明冷冻电场和偶极子取向都是造成热极化含碱玻璃非线性的原因。在玻璃中观察到的偶极子取向对于分子物理学和电动力学研究很有意义。

更新日期：2022-06-22

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