{"title":"Nonlinear optical properties of CdI/sub 2/ single crystals, doped with 3D-metals iodides","authors":"O. Yurchenko, I. Olekseyuk","doi":"10.1109/LFNM.2003.1246090","DOIUrl":null,"url":null,"abstract":"Wide band gap layered single crystals CdI/sub 2/ (4H) have close-packed hexagonal lattice. Doped with CuI and NiI/sub 2/ crystals for investigations were grown from the melt by the Bridgman method. The layered crystals possess surfaces of high quality (mirror-like quality), which are parallel to the layers. Doping improves nonlinear properties of crystals CdI/sub 2/; in particular increases the efficiency of generation of the second harmonic (SHG). SHG temperature dependencies in NiI/sub 2/ and CuI-doped crystals are investigated. All studied samples were pre-treated in magnetic fields at 4.2 K for 4 hrs. SHG signal decreases with temperature. Thus the ordering in impurity atom location is accompanied by the appearance of polarization charges on crystals surface and by increased lattice eccentricity.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"87 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LFNM.2003.1246090","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
Wide band gap layered single crystals CdI/sub 2/ (4H) have close-packed hexagonal lattice. Doped with CuI and NiI/sub 2/ crystals for investigations were grown from the melt by the Bridgman method. The layered crystals possess surfaces of high quality (mirror-like quality), which are parallel to the layers. Doping improves nonlinear properties of crystals CdI/sub 2/; in particular increases the efficiency of generation of the second harmonic (SHG). SHG temperature dependencies in NiI/sub 2/ and CuI-doped crystals are investigated. All studied samples were pre-treated in magnetic fields at 4.2 K for 4 hrs. SHG signal decreases with temperature. Thus the ordering in impurity atom location is accompanied by the appearance of polarization charges on crystals surface and by increased lattice eccentricity.