论文标题

Terahertz的gadolium炮弹(GGG)和Gadolinium scandium Garnet(SGGG)的反应

Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG)

论文作者

Sabbaghi, Mohsen, Hanson, George W., Weinert, Michael, Shi, Fan, Cen, Cheng

论文摘要

我们以频率从$ 300 \,\ Mathrm {ghz} $到$ 1 \,\ Mathrm {thz} $,并确定材料响应的材料响应,我们报告了Gadolinium Garnet(GGG)和Gadolinium Scandium Garnet(SGGG)的磁光反应。在此频率窗口中,材料表现出非分散性和低损坏的光学响应。在低温下,在(S)GGG样品中发现了明显的Thz Faraday旋转。如此强大的陀螺症反应可能与GD $^{3+} $ ions的高旋转顺磁状态有关。确定材料响应张量的模型,以及Verdet和磁化常数。

We report the magneto-optical response of Gadolinium Gallium Garnet (GGG) and Gadolinium Scandium Gallium Garnet (SGGG) at frequencies ranging from $300 \, \mathrm{GHz}$ to $1 \, \mathrm{THz}$, and determine the material response tensor. Within this frequency window, the materials exhibit nondispersive and low-loss optical responses. At low temperatures, significant THz Faraday rotations are found in the (S)GGG samples. Such strong gyroelectric response is likely associated with the high-spin paramagnetic state of the Gd$^{3+}$ ions. A model of the material response tensor is determined, together with the Verdet and magneto-optic constants.

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