发布求助
文献互助 智能选刊 最新文献

Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions最新文献

筛选
英文 中文
On multicenter luminescence spectra recording and analysis 关于多中心发光光谱的记录与分析
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475350
A. V. Mikheev, B. N. Kazakov, I. Motygullin
{"title":"On multicenter luminescence spectra recording and analysis","authors":"A. V. Mikheev, B. N. Kazakov, I. Motygullin","doi":"10.1117/12.475350","DOIUrl":"https://doi.org/10.1117/12.475350","url":null,"abstract":"The effective method of decoding multicenter luminescence spectra permitting to separate lines of radiation of impurity centers with minimal difference of lifetimes no more than 5 percent is offered. It is achieved by using the computer simulation with utilizing a small amount of experimentally detected spectra. The efficiency of a procedure is shown on an example of the analysis of a multicenter luminescence spectrum of Yb3+ ions in the CsCsF3 crystal with the use of only eight basis spectra.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"2000 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123548726","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
Optical second harmonic generation in centrosymmetric antiferromagnetic NiO 中心对称反铁磁NiO中光学二次谐波的产生
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475340
M. Fiebig, D. Froehlich, T. Lottermoser, V. Pavlov, R. Pisarev, J. Weber
{"title":"Optical second harmonic generation in centrosymmetric antiferromagnetic NiO","authors":"M. Fiebig, D. Froehlich, T. Lottermoser, V. Pavlov, R. Pisarev, J. Weber","doi":"10.1117/12.475340","DOIUrl":"https://doi.org/10.1117/12.475340","url":null,"abstract":"Optical second harmonic generation (SHG) in NiO in spectroscopy and topography experiments reveals a pronounced signal below the Neel temperature which couples quadratically to the antiferromagnetic order parameter. The SH process originates in combined magnetic-dipole and electric-dipole transitions between the (3d)8 levels of the Ni2+ ion in the crystal field. It is greatly enhanced by being resonant both in the incoming and the outgoing light waves. The polarization dependence reveals a sensitivity of the SH process to both T and S domains which are investigated in imaging experiments.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122643093","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
Er-related luminescence in Si:Er epilayers grown with sublimation molecular-beam epitaxy 升华分子束外延生长的Si:Er薄膜中与Er相关的发光
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475319
B. Andreev, Z. Krasilnik, D. I. Kryzhkov, V. P. Kuznetsov, E. Morozova, V. Shmagin, M. V. Stepikohova, A. Yablonskii
{"title":"Er-related luminescence in Si:Er epilayers grown with sublimation molecular-beam epitaxy","authors":"B. Andreev, Z. Krasilnik, D. I. Kryzhkov, V. P. Kuznetsov, E. Morozova, V. Shmagin, M. V. Stepikohova, A. Yablonskii","doi":"10.1117/12.475319","DOIUrl":"https://doi.org/10.1117/12.475319","url":null,"abstract":"The intra-center 4f-shell transitions 4I13/2 yields 4I15/2 of Er3+ ion introduced into Si crystal under original Sublimation Molecular Beam Epitaxy (SMBE) process are investigated by low temperature photoluminescence spectroscopy with resolution down to 0.5 cm-1. Er-related optically active centers detected in SMBE Si:Er/Si structures are classified based on their spectroscopic features. The novel optically active Er- related center Er-1 specific for SMBE Si:Er/Si structures is identified. A novel type of Si:Er/Si structures namely selectively Er-doped multilayer structures with enhanced luminescence efficiency grown in SMBE process is demonstrated. The features of the energy transfer to Er3+ ions in SMBE Si:Er/Si structures as compared with ion implanted Si:Er/Si structures are discussed.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116761045","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
Photodynamic nonlinear processes in UV solid-state active media and approaches to improving material laser performance 紫外光固态活性介质的光动力非线性过程及提高材料激光性能的途径
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475323
V. Semashko, M. Dubinskii, R. Abdulsabirov, S. Korableva, A. Naumov, A. Nizamutdinov, M. S. Zhuchkov
{"title":"Photodynamic nonlinear processes in UV solid-state active media and approaches to improving material laser performance","authors":"V. Semashko, M. Dubinskii, R. Abdulsabirov, S. Korableva, A. Naumov, A. Nizamutdinov, M. S. Zhuchkov","doi":"10.1117/12.475323","DOIUrl":"https://doi.org/10.1117/12.475323","url":null,"abstract":"All known solid-state UV/VUV active media based on the interconfigurational 5d-4f transitions of trivalent rare earth ions in wide-band gap fluoride crystals are solarizable under intense UV/VUV pumping. Active media- specific pumping-induced color centers, on one hand, would absorb the laser radiation and reduce the laser efficiency. On the other hand they also get bleached by the pump laser radiation so that the current value of total intracavity losses is governed by dynamic equilibrium and depends on some active medium microparameters as well as the pump flux and is cavity specific. Presented here are the model of dynamic processes in a UV solarizable active medium under pumping conditions and the new technique of laser experimental data analysis for variable intracavity losses based on this model. It is shown that properly set laser experiment enables us to obtain the necessary active medium microparameters, including the pump excited state absorption and color center absorption of laser radiation cross- sections, photoelectron trapping rate by host lattice defects and their recombination rate. The results of this technique application to the laser experiment analysis for the series of Ce3+:LiYbxLu1-xF4 single crystals are presented.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132744453","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: 12
Blue fluorescence of Ti3+ ions in LaGaO3/SrTiO3 mixed crystals LaGaO3/SrTiO3混合晶体中Ti3+离子的蓝色荧光
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475317
S. Kaczmarek
{"title":"Blue fluorescence of Ti3+ ions in LaGaO3/SrTiO3 mixed crystals","authors":"S. Kaczmarek","doi":"10.1117/12.475317","DOIUrl":"https://doi.org/10.1117/12.475317","url":null,"abstract":"In the absorption spectrum of the crystal there was stated the presence of Ti3+ ions at octahedral Ga positions in strong crystal field. Ti3+ ions arise due to some reducing conditions of the crystal growth. It was found that electron delocalization at higher temperature, e.g. In oxidation-reduction reaction: Ti4+ + e equals Ti3+ may appear in optical spectra as charge transfer bands in the NIR region giving rise to blue absorption. The observed fluorescence of 2T2-2E transition of Ti3+ in the LaGaO3/SrTiO3 mixed crystals shows two bands centered at about 420 and 447 nm coming from excitation at 314, 340 and 384 nm.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114616333","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
Cooperative optical phenomena in praseodymium doped CsCdBr3 镨掺杂CsCdBr3中的协同光学现象
Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions Pub Date : 2002-07-12 DOI: 10.1117/12.475336
J. Heber, S. Nikitin, R. Demirbilek, A. Papashvili, I. N. Vorob'ev, O. Alimov, Y. Orlovskii, E. Orlovskaya
{"title":"Cooperative optical phenomena in praseodymium doped CsCdBr3","authors":"J. Heber, S. Nikitin, R. Demirbilek, A. Papashvili, I. N. Vorob'ev, O. Alimov, Y. Orlovskii, E. Orlovskaya","doi":"10.1117/12.475336","DOIUrl":"https://doi.org/10.1117/12.475336","url":null,"abstract":"In CsCdBr3 the trivalent Rare-Earth (RE) ions substitute for the divalent Cd ions. For reasons of charge compensation and the specific crystal structure, RE centers of the form RE3+ - (Cd vacancy) - RE3+ are preferentially formed. These symmetric pair centers are very suitable for studying cooperative effects of RE ions. These include processes between the ions of the pair as well as processes between the coupled pair and the electronic excitations of the host lattice. Experiments will be shown and discussed on: (i) cross relaxation and up-conversion by direct ion-ion interaction; (ii) cooperative cross relaxation of the Pr3+ pairs with the host lattice; and (iii) cooperative vibronic emission of the Pr3+ pairs with high phonon progressions.","PeriodicalId":312884,"journal":{"name":"Feofilov Symposium on Spectropscopy of Crystals Activated by Rare-Earth and Transition Metal Ions","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131549816","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: 2
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信