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DyO、CeF和YFeO在中红外波长下的法拉第旋转

Faraday Rotation of DyO, CeF and YFeO at the Mid-Infrared Wavelengths.

作者信息

Vojna David, Slezák Ondřej, Yasuhara Ryo, Furuse Hiroaki, Lucianetti Antonio, Mocek Tomáš

机构信息

HiLASE Centre, FZU-Institute of Physics of the Czech Academy of Sciences, Za Radnicí 828, 252 41 Dolní Břežany, Czech Republic.

Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague, Czech Republic.

出版信息

Materials (Basel). 2020 Nov 24;13(23):5324. doi: 10.3390/ma13235324.

DOI:10.3390/ma13235324
PMID:33255447
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7727863/
Abstract

The relatively narrow choice of magneto-active materials that could be used to construct Faraday devices (such as rotators or isolators) for the mid-infrared wavelengths arguably represents a pressing issue that is currently limiting the development of the mid-infrared lasers. Furthermore, the knowledge of the magneto-optical properties of the yet-reported mid-infrared magneto-active materials is usually restricted to a single wavelength only. To address this issue, we have dedicated this work to a comprehensive investigation of the magneto-optical properties of both the emerging (Dy2O3 ceramics and CeF3 crystal) and established (Y3Fe5O12 crystal) mid-infrared magneto-active materials. A broadband radiation source was used in a combination with an advanced polarization-stepping method, enabling an in-depth analysis of the wavelength dependence of the investigated materials' Faraday rotation. We were able to derive approximate models for the examined dependence, which, as we believe, may be conveniently used for designing the needed mid-infrared Faraday devices for lasers with the emission wavelengths in the 2-μm spectral region. In the case of Y3Fe5O12 crystal, the derived model may be used as a rough approximation of the material's saturated Faraday rotation even beyond the 2-μm wavelengths.

摘要

可用于构建中红外波长法拉第器件（如旋转器或隔离器）的磁活性材料选择相对有限，这可以说是当前限制中红外激光器发展的一个紧迫问题。此外，对于已报道的中红外磁活性材料的磁光特性的了解通常仅局限于单一波长。为解决这一问题，我们致力于全面研究新兴的（Dy2O3陶瓷和CeF3晶体）和已有的（Y3Fe5O12晶体）中红外磁活性材料的磁光特性。我们使用宽带辐射源并结合先进的偏振步进方法，得以深入分析所研究材料的法拉第旋转对波长的依赖性。我们能够推导出所研究依赖性的近似模型，我们认为该模型可方便地用于设计所需的中红外法拉第器件，用于发射波长在2-μm光谱区域的激光器。对于Y3Fe5O12晶体，即使在超过2-μm波长的情况下，所推导的模型也可作为该材料饱和法拉第旋转的粗略近似。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/2e4c719a6f6e/materials-13-05324-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/c3676422130d/materials-13-05324-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/53bca38a6aee/materials-13-05324-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/a3b8822b2418/materials-13-05324-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/2e4c719a6f6e/materials-13-05324-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/c3676422130d/materials-13-05324-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/53bca38a6aee/materials-13-05324-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/a3b8822b2418/materials-13-05324-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd26/7727863/2e4c719a6f6e/materials-13-05324-g004.jpg

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本文引用的文献

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Verdet constant of potassium terbium fluoride crystal as a function of wavelength and temperature.氟化铽钾晶体的费尔德常数与波长和温度的函数关系。
Opt Lett. 2020 Apr 1;45(7):1683-1686. doi: 10.1364/OL.387911.
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2.92-µm high-efficiency continuous-wave laser operation of diode-pumped Er:YAP crystal at room temperature.室温下二极管泵浦Er:YAP晶体实现2.92微米高效连续波激光运转
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Opt Lett. 2019 Mar 15;44(6):1297-1299. doi: 10.1364/OL.44.001297.
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Magneto-optical Faraday effect in dysprosium oxide (DyO) based ceramics obtained by vacuum sintering.真空烧结法制备氧化镝（DyO）基陶瓷的磁光法拉第效应。
Opt Lett. 2018 Aug 15;43(16):4041-4044. doi: 10.1364/OL.43.004041.
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Cryogenically cooled CeF3 crystal as media for high-power magneto-optical devices.低温冷却的CeF3晶体作为高功率磁光器件的介质。
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