UV-visible Faraday rotators based on rare-earth fluoride single crystals: LiREF4 (RE = Tb, Dy, Ho, Er and Yb), PrF3 and CeF3
UV-visible Faraday rotators based on rare-earth fluoride single crystals: LiREF4 (RE = Tb, Dy, Ho, Er and Yb), PrF3 and CeF3
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DOI：
10.1364/oe.20.014460
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发表时间：
2012-06-18
期刊：
影响因子：
3.8
通讯作者：
Shimamura, Kiyoshi
中科院分区：
文献类型：
--
作者：
Vasyliev, Valentyn;Villora, Encarnacion G.;Shimamura, Kiyoshi
用提拉法生长了高光学质量的LiREF_4（RE = Tb ~（3+），Dy ~（3+），Ho ~（3+），Er ~（3+）和Yb ~（3+）），PrF_3和CeF_3单晶。在紫外-可见光波段对它们的磁光特性进行了详细的测量和分析，并确定了它们作为法拉第旋光器的优值。CeF 3在300 nm以上呈现出上级特性，显示出比目前用于可见-近红外的参考材料铽镓石榴石更高的品质因数。PrF 3是220-300 nm范围内最好的旋光体。在较短波长和真空紫外波段，LiREF_4晶体是独特的旋光体。总的来说，这里研究的稀土氟化物单晶表现出更好的性能比其他材料考虑到目前为止，因此，他们有潜力，以满足日益增长的需求，新的和改进的法拉第旋转器在紫外-可见波长区域。2012美国光学学会Optical Society of America
High optical quality LiREF4 (RE = Tb3+, Dy3+, Ho3+, Er3+ and Yb3+), PrF3 and CeF3 single crystals have been grown by the Czochralski technique. Their magneto-optical properties have been measured and analyzed in detail in the ultraviolet-visible wavelength region, and their figures of merit as Faraday rotators have been determined. CeF3 presents superior properties above 300 nm, showing a figure of merit higher than that of the reference material, terbium-gallium-garnet, which is nowadays used in the visible-near infrared. PrF3 is the best rotator for the 220-300 nm range. Towards shorter wavelength and in the vacuum ultraviolet, it is shown that the LiREF4 crystals are unique rotators. Overall, the rare-earth fluoride single crystals studied here exhibit better properties than other materials considered so far, and therefore they have potential to cover the increasing demand for new and improved Faraday rotators in the ultraviolet-visible wavelength region. (C)2012 Optical Society of America