{"title":"Photothermal measurement with mirage effect for investigation of LiNbO3 single crystals","authors":"J. Bodzenta, M. Pyka","doi":"10.1051/JP4:2006137052","DOIUrl":null,"url":null,"abstract":"Results of measurements of the thermal diffusivity of pure and doped lithium niobate single crystals are presented. A reference sample was a pure crystal. The others were doped with: Cu (0.05%at.), Dy (0.1 %at., 1.0%at., and 1.7%at.), and Er + Yb (1.0%at. Er + 1.0%at. Yb) ions. Thermal properties were determined in [100], [120] and [001] crystallographic directions. Experimental studies were carried out using photothermal method based on mirage effect. This method based on determination of a phase lag connected with propagation ofa thermal wave in investigated sample. Obtained results showed considerable anisotropy of the thermal diffusivity of pure crystal and doped samples. The thermal properties in [001] direction (c-axis) is higher than in directions perpendicular to it. Unexpectedly, anisotropy of the thermal diffusivity in plane (001) was also observed.","PeriodicalId":14838,"journal":{"name":"Journal De Physique Iv","volume":"43 1","pages":"259-263"},"PeriodicalIF":0.0000,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal De Physique Iv","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1051/JP4:2006137052","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
Abstract
Results of measurements of the thermal diffusivity of pure and doped lithium niobate single crystals are presented. A reference sample was a pure crystal. The others were doped with: Cu (0.05%at.), Dy (0.1 %at., 1.0%at., and 1.7%at.), and Er + Yb (1.0%at. Er + 1.0%at. Yb) ions. Thermal properties were determined in [100], [120] and [001] crystallographic directions. Experimental studies were carried out using photothermal method based on mirage effect. This method based on determination of a phase lag connected with propagation ofa thermal wave in investigated sample. Obtained results showed considerable anisotropy of the thermal diffusivity of pure crystal and doped samples. The thermal properties in [001] direction (c-axis) is higher than in directions perpendicular to it. Unexpectedly, anisotropy of the thermal diffusivity in plane (001) was also observed.