Enhancement of magneto-optical performance of Tb2.85Er0.15Ga5O12 crystal with high transmittance

Enhancement of magneto-optical performance of Tb2.85Er0.15Ga5O12 crystal with high transmittance
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高透过率Tb2.85Er0.15Ga5O12晶体磁光性能的增强

DOI:
10.1016/j.optmat.2022.112354
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发表时间:
2022-06
期刊:
影响因子:
3.9
通讯作者:
Yang Chao
Yang Chao
中科院分区:
材料科学3区
文献类型:
--
作者:
Chen Zhe;Zhu Ling;Yiji Yong;Yang Chao

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基于Tb_3Ga_5O_(12)(TGG)晶体的磁光材料为现代法拉第隔离器(FI)提供了有希望的机会。采用提拉法(Cz)制备了高透过率的Tb 2. 85 Er 0. 15 Ga 5 O 12晶体。注意,所制备的晶体在1064.0 nm处呈现出1270 ppm/cm的极低吸收系数,并且所生长的晶体在405.0、533.0、632.0、1064.0 nm处的费尔德常数分别为588.0、230.2、152.3和51.7 rad m-1 T-1。在1064 nm处测得的费尔德常数约为纯TGG晶体的1.3倍。因此,在制造FI时,有可能使法拉第旋转器的长度和磁体最小化。Tb2.85Er0.15Ga5O12单晶的优良特性使其成为一种很有吸引力的磁光材料。
Magneto-optical materials based on Tb3Ga5O12(TGG) crystals are providing promising opportunities for modern Faraday isolators (FIs). Tb2.85Er0.15Ga5O12crystals with high transmittance were prepared using the Czochralski method (Cz). It is noted that as-prepared crystal presents an extremely low absorption coefficient of 1270 ppm/cm at 1064.0 nm and the Verdet constants of as-grown crystal at 405.0, 533.0, 632.0, 1064.0 nm were 588.0, 230.2, 152.3, and 51.7 rad m−1T−1, respectively. The measured Verdet constant at 1064 nm was about 1.3 times higher than that of pure TGG crystal. Thus, it has the possibility to minimize the length and the magnet of faraday rotator in making FIs. The Excellent characteristic makes Tb2.85Er0.15Ga5O12single crystal an attractive magneto-optical material.
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