{"title":"用于法拉第隔离器的透明 Tb2Ti2O7 陶瓷","authors":"I.L. Snetkov , K.V. Sidorenko , O.V. Palashov , Lixuan Zhang , Jiang Li","doi":"10.1016/j.oceram.2024.100662","DOIUrl":null,"url":null,"abstract":"<div><p>Magneto-optical and thermo-optical characteristics of transparent Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> ceramics were investigated. The dependence of the index of refraction on the wavelength in the 0.29–2 μm range, the wavelength and temperature dependence of the Verdet constant, as well as the dependence of thermally induced depolarization on laser radiation power were measured. The value of the Verdet constant in Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> surpasses that in Tb<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> by more than 1.68 times. The thermo-optical characteristic <em>Q</em><sub><em>eff</em></sub> was estimated to be (1.8–3.7)∙10<sup>−8</sup> 1/K, which is record small compared to <em>Q</em><sub><em>eff</em></sub> of the known magneto-optical materials. The small value of <em>Q</em><sub><em>eff</em></sub> makes Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> a highly promising magneto-optical material for Faraday isolators and rotators for high average power lasers.</p></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":null,"pages":null},"PeriodicalIF":2.9000,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666539524001263/pdfft?md5=775e35a996d4f22e9cbb78da70d0c3de&pid=1-s2.0-S2666539524001263-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Transparent Tb2Ti2O7 ceramics for use in Faraday isolators\",\"authors\":\"I.L. Snetkov , K.V. Sidorenko , O.V. Palashov , Lixuan Zhang , Jiang Li\",\"doi\":\"10.1016/j.oceram.2024.100662\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Magneto-optical and thermo-optical characteristics of transparent Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> ceramics were investigated. The dependence of the index of refraction on the wavelength in the 0.29–2 μm range, the wavelength and temperature dependence of the Verdet constant, as well as the dependence of thermally induced depolarization on laser radiation power were measured. The value of the Verdet constant in Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> surpasses that in Tb<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> by more than 1.68 times. The thermo-optical characteristic <em>Q</em><sub><em>eff</em></sub> was estimated to be (1.8–3.7)∙10<sup>−8</sup> 1/K, which is record small compared to <em>Q</em><sub><em>eff</em></sub> of the known magneto-optical materials. The small value of <em>Q</em><sub><em>eff</em></sub> makes Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> a highly promising magneto-optical material for Faraday isolators and rotators for high average power lasers.</p></div>\",\"PeriodicalId\":34140,\"journal\":{\"name\":\"Open Ceramics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2024-08-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666539524001263/pdfft?md5=775e35a996d4f22e9cbb78da70d0c3de&pid=1-s2.0-S2666539524001263-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Open Ceramics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666539524001263\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Open Ceramics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666539524001263","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Transparent Tb2Ti2O7 ceramics for use in Faraday isolators
Magneto-optical and thermo-optical characteristics of transparent Tb2Ti2O7 ceramics were investigated. The dependence of the index of refraction on the wavelength in the 0.29–2 μm range, the wavelength and temperature dependence of the Verdet constant, as well as the dependence of thermally induced depolarization on laser radiation power were measured. The value of the Verdet constant in Tb2Ti2O7 surpasses that in Tb3Ga5O12 by more than 1.68 times. The thermo-optical characteristic Qeff was estimated to be (1.8–3.7)∙10−8 1/K, which is record small compared to Qeff of the known magneto-optical materials. The small value of Qeff makes Tb2Ti2O7 a highly promising magneto-optical material for Faraday isolators and rotators for high average power lasers.
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