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Effect of Y substitution on the microstructure,magneto-optical,and thermal properties of(Tb_(1−x)Y_(x))_(3)Al_(5)O_(12)transparent ceramics

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Journal of Advanced Ceramics 2024年第4期13卷 529-538页

作者： Lixuan Zhang Dianjun Hu Xiao Li Ziyu Liu Chen Hu Lexiang Wu Tingsong Li Dariusz Hreniak Jiang Li Transparent Ceramics Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland

Faraday isolators can prevent the front-end system from disturbance and damage caused by a back-reflected beam,so they are important elements in laser *** magneto-optical materials are the most important component in Faraday isolators,the studies on magneto-optical materials have attracted much attention these ***_(3)Al_(5)O_(12)(TAG)ceramics are considered to be one of the most promising magneto-optical materials for visible to near-infrared wavelength band application because of their outstanding comprehensive magneto-optical ***,the optical quality of TAG ceramics needs further optimization to meet the application *** this work,high optical quality(Tb_(1−x)Y_(x))_(3)Al_(5)O_(12)(x=0,0.05,0.1,0.2,and 0.3)magneto-optical ceramics were fabricated successfully by solid-state reaction sintering combined with hot isostatic pressing(HIP)*** the ceramics obtained showed a single garnet phase for different values of x in the range *** addition of Y_(2)O_(3) was found to suppress the secondary phase and improve optical quality *** ceramic samples obtained had clear grain boundaries and possessed the in-line transmittance values of 82.9%at 1064 nm and 82.2%at 633 nm,*** Verdet constants of(Tb_(1−x)Y_(x))_(3)Al_(5)O_(12)ceramics with x=0,0.05,0.1,0.2,and 0.3 were−188.1,−175.4,−168.5,−143.0,and−119.9 rad/(T·m),*** thermal conductivity of TAG ceramics was found to be 5.23 W/(m·K)at 25℃,and when 20%Y was substituted in place of Tb,the thermal conductivity decreased by only 9.4%.

关键词： (Tb_(1−x)Y_(x))_(3)Al_(5)O_(12)ceramics magneto-optical materials optical quality thermal properties

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Effect of Sc substitution on the phase composition,microstructure,and properties of(Tb_(1−x)Sc_(x))_(3)(Al_(1−y)Sc_(y))_(2)Al_(3)O_(12) transparent ceramics

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Journal of Advanced Ceramics 2024年第9期13卷 1442-1452页

作者： Lixuan Zhang Chen Hu Xiao Li Zhenzhen Zhou Tingsong Li Yiyang Liu Lexiang Wu Jiang Li Transparent Ceramics Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China Center of materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China

Terbium aluminum garnet(Tb_(3)Al_(5)O_(12);TAG)ceramics are among the most promising magneto–optical materials owing to their outstanding comprehensive *** works have focused on improving the optical quality of TAG ceramics.A key point for improving optical quality is ensuring the accuracy of the stoichiometric ratio and avoiding secondary *** this work,0,2,4,or 6 wt%Sc2O3 was added to the TAG ceramics to increase the solid *** effects of Sc substitution on the crystal structure,sintering process,microstructure,optical transmittance,and magneto–optical properties of(Tb_(1−x)Sc_(x))_(3)(Al_(1−y)Sc_(y))_(2)Al_(3)O_(12)(TSAG)ceramics are studied in detail.4 wt%Sc2O3:TAG ceramics with an in-line transmittance of 82.2%at 1064 nm and 81.2%at 633 nm were successfully fabricated,and the Verdet constant was 164.4 rad·T^(−1)·m^(−1) at 633 ***-site defects(ADs)and Sc replacement in TAG are further studied via first-principles calculations to determine the working mechanism of *** the experimental and calculation results show that the introduction of Sc can effectively increase the solid solubility of TAG ceramics,suppress secondary phases,and hence improve the optical transmittance.

关键词： terbium aluminum garnet ceramics magneto-optical materials microstructures anti-site defects(ADs) firstprinciples calculations

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Synthesis of yttrium iron garnet/bismuth quantum dot heterostructures with localized plasmon enhanced magneto-optical performance

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Journal of materials Science & Technology 2020年第16期47卷 32-39页

作者： Lichuan Jin Caiyun Hong Dainan Zhang Peng Gao Yiheng Rao Gang Wang Qinghui Yang Zhiyong Zhong Huaiwu Zhang State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu610054China School of Science Westlake UniversityHangzhou310024China Electron Microscopy Laboratory and International Center for Quantum MaterialsSchool of PhysicsPeking UniversityBeijing100871China Collaborative Innovation Centre of Quantum Matter Beijing100871China

Interactions between light and magnetic matter attracted great attention lately due to their potential applications in nanophotonics,spintronics,and high-accuracy ***,we grew bismuth quantum dots(Bi–QDs)with strong spin–orbit coupling on a magnetic insulator yttrium iron garnet(YIG)via molecular beam *** YIG/Bi–QDs material shows an enhanced magneto-optical Kerr rotation up to 130%compared with that of a bare YIG *** Bi–QDs were also introduced onto a lutetium–bismuth co-doped YIG film to form a hybrid system with remarkably enhanced Kerr rotation(from 1626 to 2341 mdeg).Ferromagnetic resonance measurements showed an increased effective magnetization as well as interfacial spin–orbit field in the YIG/Bi–QD *** plasmons were mapped using electron energy loss spectroscopy with high spatial resolution,revealing enhanced plasmon intensity at both the Bi–QD surface and YIG/Bi–QD *** Bi-QDs onto the YIG film enhanced Kerr rotation owing to the attenuated optical reflection and increased effective *** Bi–QDenhanced magneto-optical effect enables development of efficient nanoscale light switching,spintronics,and even plasmonic nano-antennas.

关键词： Electron energy loss spectroscopy Surface plasmon resonance magneto-optical materials Bismuth quantum dot Ferromagnetic resonance

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High sensitivity side-hole fiber magnetic field sensor,based on surface plasmon resonance

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Chinese Optics Letters 2016年第11期14卷 19-22页

作者：翁思俊裴丽王建帅宁提纲李晶 Key Lab of All optical Network and Advanced Telecommunication Network of Ministry of Education Institute of Lightwave TechnologyBeijing Jiaotong University

A high sensitivity magnetic fluid（MF） filled side-hole fiber magnetic field sensor based on surface plasmon resonance（SPR） is designed and *** the side-hole fiber,the water-based MF is injected into the two side holes,and both of the holes are coated with gold to realize the measurement of the magnetic field by using the SPR *** refractive index of the MF changes with different external magnetic fields,resulting in the resonant wavelength moving to other ***,when the external magnetic field increases from 30 to 210.9 Oe,the magnetic field sensitivity can reach to 1.063 nm/Oe.

关键词： Fiber optics sensors magneto-optical materials Surface plasmons

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