Xiaoling Zhang, Xin Zhang, J. Tong, Jie Gao, Lijie Jin, Zhaopeng Xu
{"title":"Growth and photorefractive properties of Zr:Cu:Fe:LiNbO3 crystals with various Li/Nb ratios","authors":"Xiaoling Zhang, Xin Zhang, J. Tong, Jie Gao, Lijie Jin, Zhaopeng Xu","doi":"10.1117/12.2181662","DOIUrl":null,"url":null,"abstract":"A series of Zr(1 mol%):Cu(0.1 mol%):Fe(0.03wt%)LiNbO3 single crystals with various Li/Nb ratios having compositions varying between 48.6 and 58 mol% Li2O in the melt were grown by the Czochralski method in the air. The OH− transmittance spectra was investigated to characterize the structure defects of these crystals. The OH− absorption peaks shift to longer wavelength as the [Li]/[Nb] ratio increases and an obvious absorption peak at 3468 cm-1 was observed at the Li/Nb ratio of 1.05. The photorefractive properties of the crystals were experimentally studied using the two-wave coupling method. The results show that as the [Li]/[Nb] ratio increases, the holographic response time and the diffraction efficiency increase under the Li/Nb ratio of 1.2.","PeriodicalId":225534,"journal":{"name":"Photoelectronic Technology Committee Conferences","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photoelectronic Technology Committee Conferences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2181662","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A series of Zr(1 mol%):Cu(0.1 mol%):Fe(0.03wt%)LiNbO3 single crystals with various Li/Nb ratios having compositions varying between 48.6 and 58 mol% Li2O in the melt were grown by the Czochralski method in the air. The OH− transmittance spectra was investigated to characterize the structure defects of these crystals. The OH− absorption peaks shift to longer wavelength as the [Li]/[Nb] ratio increases and an obvious absorption peak at 3468 cm-1 was observed at the Li/Nb ratio of 1.05. The photorefractive properties of the crystals were experimentally studied using the two-wave coupling method. The results show that as the [Li]/[Nb] ratio increases, the holographic response time and the diffraction efficiency increase under the Li/Nb ratio of 1.2.
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