{"title":"利用海市蜃楼效应的光热测量研究LiNbO3单晶","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":"{\"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}","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
摘要
给出了纯铌酸锂单晶和掺杂铌酸锂单晶热扩散系数的测量结果。参考样品为纯晶体。其余分别掺杂:Cu (0.05%at.)， Dy (0.1% at.)。,在1.0%。， 1.7%at.)， Er + Yb (1.0%at.)。Er + 1.0%at。Yb)离子。在[100]，[120]和[001]晶体学方向上测定了热性能。采用基于海市蜃楼效应的光热方法进行了实验研究。该方法基于测定热波在被测样品中传播时的相位滞后。所得结果表明，纯晶体和掺杂样品的热扩散系数具有明显的各向异性。在[001]方向(c轴)的热性能高于垂直于它的方向。出乎意料的是，在平面(001)上也观察到了热扩散系数的各向异性。
Photothermal measurement with mirage effect for investigation of LiNbO3 single crystals
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.
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