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International Conference on Solid State Crystals最新文献

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Influence of the growth conditions on the elastic properties of SrLaAlO4 and SrLaGaO4 crystals studied by Brillouin light scattering 用布里渊光散射研究了生长条件对SrLaAlO4和SrLaGaO4晶体弹性性能的影响
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435846
D. Kasprowicz, M. Drozdowski, A. Wronkowska, A. Pajączkowska
{"title":"Influence of the growth conditions on the elastic properties of SrLaAlO4 and SrLaGaO4 crystals studied by Brillouin light scattering","authors":"D. Kasprowicz, M. Drozdowski, A. Wronkowska, A. Pajączkowska","doi":"10.1117/12.435846","DOIUrl":"https://doi.org/10.1117/12.435846","url":null,"abstract":"Study of the optic and elastic properties of SrLaAlO4 and SrLaGaO4 crystals are presented. The investigated crystals were grown by Czochralski method. The elastic constants of SrLaAlO4 and SrLaGaO4 crystals at room temperature have been determined by Brillouin scattering method. Refractive indices have been measured independently by ellipsometry technique. The results are discussed in terms of the oxygen point defects, which can be crated in the lattices of SrLaAlO4 and SrLaGaO4 crystals during the growth process.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123087841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of system Si-O (SiOx) behavior in DAC at submegabar pressure 亚兆巴压力下DAC体系Si-O (SiOx)行为的研究
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435809
B. Efros, N. Shishkova, A. Prudnikov, A. Misiuk, J. Bąk-Misiuk, J. Hartwig
{"title":"Investigation of system Si-O (SiOx) behavior in DAC at submegabar pressure","authors":"B. Efros, N. Shishkova, A. Prudnikov, A. Misiuk, J. Bąk-Misiuk, J. Hartwig","doi":"10.1117/12.435809","DOIUrl":"https://doi.org/10.1117/12.435809","url":null,"abstract":"Extensive experiment studies of the IV elements have been made in recent years. Motivations have included the rich variety of phase and structural transitions.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116372652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relaxation dynamics of excited states of Er3+ in YVO4 single crystals YVO4单晶中Er3+激发态的松弛动力学
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435863
S. Gołąb, G. Dominiak-Dzik, P. Solarz, T. Lukasiewicz, M. Świrkowicz, I. Sókolska, W. Ryba-Romanowski
{"title":"Relaxation dynamics of excited states of Er3+ in YVO4 single crystals","authors":"S. Gołąb, G. Dominiak-Dzik, P. Solarz, T. Lukasiewicz, M. Świrkowicz, I. Sókolska, W. Ryba-Romanowski","doi":"10.1117/12.435863","DOIUrl":"https://doi.org/10.1117/12.435863","url":null,"abstract":"Crystals of Er:YVO4 were grown by Czochralski method. Uniformly doped and good quality crystals have been obtained. The lifetimes of the 4S3/2, and the luminescence dynamics were studied as a function of temperature in the region 5-500K. The green luminescence around 550 nm has been observed in excitation by the Ti:sapphire laser into 4I11/2 level. The excitation spectrum recorded for 4S3/2 has been compared with absorption cross section spectrum and calculated ESA spectrum for 4I11/2-4F7/2 transition. The contribution of ESA process in upconversion phenomenon under excitation into 4I11/2 has been assessed. The emission cross-section and the gain coefficient for 4I13/2-4I15/2 transition of Er3+ in YVO4 have been calculated.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123784702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Investigations of YAG:Er3+,Yb3+ and YAG:Co2+ crystals for laser application YAG:Er3+，Yb3+和YAG:Co2+晶体激光应用研究
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435869
Z. Mierczyk, K. Kopczyński, M. Kwaśny, T. Lukasiewicz, Z. Frukacz, Z. Galazka
{"title":"Investigations of YAG:Er3+,Yb3+ and YAG:Co2+ crystals for laser application","authors":"Z. Mierczyk, K. Kopczyński, M. Kwaśny, T. Lukasiewicz, Z. Frukacz, Z. Galazka","doi":"10.1117/12.435869","DOIUrl":"https://doi.org/10.1117/12.435869","url":null,"abstract":"The results of examinations of spectroscopic properties and generation parameters of new active media, i.e., Er3+ and Yb3+ doped YAG crystals are given. Erbium and ytterbium doped YAG single crystals were obtained by the Czochralski method. The spectral properties and laser characteristics were investigated. Absorption spectra of Er3+ and Yb3+-doped active media were measured in the spectral range 190 divided by 5000 nm at room temperature. Excitation and luminescence spectra were also recorded at room temperature with a JOBIN-YVON spectrofluorimeter using a diode laser as an excitation source. The measurements of the lifetime of the Er3+ ions in the upper laser level of the samples were made by the direct method with pulse excitation. We present also the result of investigations on spectroscopic properties and non-linear absorption effect in YAG:Co2+ crystal-new absorber used for the systems generating giant-pulse radiation at 1.5 micrometers .","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125975037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Excited-state absorption in the Cr6+O2- center in Li2B4O7 glass Li2B4O7玻璃中Cr6+O2中心的激发态吸收
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435851
C. Koepke, K. Wisniewski, M. Grinberg
{"title":"Excited-state absorption in the Cr6+O2- center in Li2B4O7 glass","authors":"C. Koepke, K. Wisniewski, M. Grinberg","doi":"10.1117/12.435851","DOIUrl":"https://doi.org/10.1117/12.435851","url":null,"abstract":"We present excited state absorption (ESA) measurements of the Cr:Li2B4O7 glass along with preliminary interpretation. The most distinct feature in the ESA characteristics is connected with the presence of chromium in its hexe-valence states. The Cr6+ ions appear to contribute in the deexcitation processes and their evidence can be seen in the ESA spectra under excitation wavelength at 308 nm. We interpret the ESA spectra detected with UV excitation in terms of transitions in the framework of Cr5+O- center which forms aster charge- transfer-type absorption in (CrO4)2- group. We assume the presence of the double-electron state of the 3d22p4 electronic configuration together with crystal field-split states of the 3d12p5 configuration, both allow to reproduce the obtained ESA spectra.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134422654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Charge traps and emission kinetics in LuAP:Ce LuAP:Ce中的电荷阱和发射动力学
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435828
J. Glodo, A. Wojtowicz
{"title":"Charge traps and emission kinetics in LuAP:Ce","authors":"J. Glodo, A. Wojtowicz","doi":"10.1117/12.435828","DOIUrl":"https://doi.org/10.1117/12.435828","url":null,"abstract":"In this contribution we demonstrate the influence of shallow charge traps on emissions kinetics of LuAlO3:Ce3+ scintillator. Shallow traps through their interference with the recombination process not only introduce into the emission time profiles long components but also can change the rising and decaying parts of time profiles. The lifetime of excited Ce3+ ion in LuAP crystal is approximately 18 ns, while the excitation at 78 nm leads to the emission described by 21.5 and 1.22 ns decay and rise time constants, respectively. Furthermore, temperature dependence of time profile phase is observed. The analysis of emissions kinetics measured against temperature shows that observed features can be explained in terms of a trap described by the following parameters: E equals 0.142 eV and S equals 6.087 X 1010 s-1.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"28 5-6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114038356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Photoinduced optical effects in BiB3O6 glass BiB3O6玻璃的光致光学效应
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435845
I. Kityk, M. Makowska-Janusik, A. Majchrowski
{"title":"Photoinduced optical effects in BiB3O6 glass","authors":"I. Kityk, M. Makowska-Janusik, A. Majchrowski","doi":"10.1117/12.435845","DOIUrl":"https://doi.org/10.1117/12.435845","url":null,"abstract":"A new borate material, BiB3O6 (BiBO) has been reported to have extremely high nonlinear optical (NLO) coefficient. In our investigations we obtained both glass and single crystal of BiBO. Owing to its composition, the material is very viscous when molten. This factor cause serious problems both during synthesis and crystallization of BiBO. In this paper only properties of BiBO glass are reported. We found that for the increase of the long-range ordering the photoinduced optical second harmonic generation (SHG) shows a maximum, which is shifted towards the lower photo inducing power with the increase of the temperature. Maximal value of SHG was about 0.081 pm/V at 1.06 micrometers radiation from YAG:Nd laser.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124175449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Thermal fixing of holographic gratings in nearly stoichiometric LiNbO3 crystals 近化学计量LiNbO3晶体全息光栅的热固定
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435830
G. Mandula, K. Lengyel, L. Kovács, M. Ellabban, R. Rupp, M. Fally
{"title":"Thermal fixing of holographic gratings in nearly stoichiometric LiNbO3 crystals","authors":"G. Mandula, K. Lengyel, L. Kovács, M. Ellabban, R. Rupp, M. Fally","doi":"10.1117/12.435830","DOIUrl":"https://doi.org/10.1117/12.435830","url":null,"abstract":"The thermal decay of holographic gratings recorded using the conventional two-wave mixing technique has been studied in congruent and nearly stoichiometric LiNbO3 crystal doped with Mn. The activation energies of this process have been determined in the 70-130 degrees C range for congruent and 20-80 degrees C range for nearly stoichiometric crystals, the obtained values being 1.06 +/- 0.03 and 1.10 +/- 0.03 eV, respectively. The kinetics of the OH absorption spectrum has also been studied in undoped nearly stoichiometric LiNbO3 between 40-120 degrees C. The time dependence of the band intensities can be characterized by exponential time constants obeying the Arrhenius-law. The average activation energy, Ea equals 1.1 +/- 0.1 eV is in good agreement with those obtained from the thermal decay indicating that the hologram fixing process in nearly stoichiometric LiNbO3 is governed by proton migration.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"365 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115893441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Magnetic ordering of Dy3+ ion in low-dimensional CsDy(WO4)2 double tungstate 低维双钨酸CsDy(WO4)2中Dy3+离子的磁有序
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435840
V. Dyakonov, M. Borowiec, A. Jędrzejczak, E. Zubov, T. Zayarnyuk, H. Szymczak
{"title":"Magnetic ordering of Dy3+ ion in low-dimensional CsDy(WO4)2 double tungstate","authors":"V. Dyakonov, M. Borowiec, A. Jędrzejczak, E. Zubov, T. Zayarnyuk, H. Szymczak","doi":"10.1117/12.435840","DOIUrl":"https://doi.org/10.1117/12.435840","url":null,"abstract":"Magnetic ordering of Dy3+ ion in low-dimensional magnet CsDy(WO4)2 has been first studied by means of measurements of the low temperature specific heat over a temperature range of 0.5-23K. The ordering temperature of the Dy3+ sublattice was established to be 1.34K. The experimental data indicate on the antiferromagnetic character of Dy3+ ions interactions. The magnetic behavior above and below Tn is discussed in the framework of different theoretical models.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125080358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Irradiation effect on the pinning potential of YBCO single crystal 辐照对YBCO单晶钉钉电位的影响
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435837
S. Barilo, V. Gatalskaya, G. V. Gatalskii, Sergei L. Kurockin
{"title":"Irradiation effect on the pinning potential of YBCO single crystal","authors":"S. Barilo, V. Gatalskaya, G. V. Gatalskii, Sergei L. Kurockin","doi":"10.1117/12.435837","DOIUrl":"https://doi.org/10.1117/12.435837","url":null,"abstract":"The results of the magnetization measurements of single crystal of Yba2Cu3Oy with Tc equals 91K are adduced. The temperature, field and time dependencies of the remnant magnetization Mr(T, B, t) were obtained using VSM method for the temperature range from 4.2 K to 75 K for Hc configuration. The single crystal has been irradiated by the fast electrons with fluences up to 2 X 1018 cm-2. The relaxation of Mr(t) obeys to the logarithmic law for the time interval t equals 1 h for whole temperature range except the approximately 30-50 K interval for starting and irradiated states. After irradiation the Jc decease despite the flux creep reduction. The irradiation become less effective at high temperatures. The results are discussed in frame of conventional flux creep theory and of the interaction model of radiation defects with the background ones.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125898371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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