DC Field | Value | Language |
---|---|---|
dc.contributor.author | Heo, J | - |
dc.date.accessioned | 2016-03-31T12:54:11Z | - |
dc.date.available | 2016-03-31T12:54:11Z | - |
dc.date.created | 2009-02-28 | - |
dc.date.issued | 2002-11 | - |
dc.identifier.issn | 1631-0748 | - |
dc.identifier.other | 2003-OAK-0000003228 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/18661 | - |
dc.description.abstract | Spectroscopic properties and local structure of rare-earth ions in Ge-Ga-S glasses with the addition of alkali halides were investigated. The intensity of the 1.31-mum emission from Dy3+ (F-6(11/2) H-6(9/2) --> H-6(15/2)) increased sharply when the appropriate. amount of alkali halides was added, at the expense of the 1.75-mum emission intensity (H-6(11/2) -->H-6(15/2)). The lifetimes of the 1.31-mum emission level also increased as much as 35 times from 38 mus for Ge-Ga-S glass (0.1 at.% Dy3+) to 1320 mus for glass containing 10 mol% of CsBr. These enhancements occurred only when the ratio of MX(M = K,Cs and X = Br, I)/Ga was equal to or larger than unity. Phonon side band (PSB) showed that the several local phonon modes, with the frequencies around 100 cm(-1), were coupled to 4f electrons of Eu3+. The nearest neighbors of Eu3+ ions are composed of halogen ions that are part of well-structured complex such as EuCl3, tetrahedral [GaS3/2Cl](-) subunit and/or Ga2Cl6. A small amount of As was added to increase the resistivity against the recrystallization during re-heating. The best composition for practical usage was 0.7 [Ge0.25As0.10S0.65]-0.15 GaS3/2-0.15 CsBr. This glass also exhibited high resistance against the attack of liquid water and is therefore a potential material for efficient fiber-optic amplifiers. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | EDITIONS SCIENTIFIQUES MEDICALES ELSE | - |
dc.relation.isPartOf | COMPTES RENDUS CHIMIE | - |
dc.subject | chalcohalide glasses | - |
dc.subject | emission properties | - |
dc.subject | phonon side band | - |
dc.subject | Raman spectroscopy | - |
dc.subject | local structure | - |
dc.subject | OPTICAL-FIBER AMPLIFIERS | - |
dc.subject | GA-S GLASSES | - |
dc.subject | MULTIPHONON RELAXATION | - |
dc.subject | MU-M | - |
dc.subject | SPECTROSCOPIC ANALYSIS | - |
dc.subject | OXIDE GLASSES | - |
dc.subject | FLUORESCENCE | - |
dc.subject | EMISSION | - |
dc.subject | EU3+ | - |
dc.subject | DEPENDENCE | - |
dc.title | 1.3-mu m-emission properties and local structure of Dy3+ in chalcohalide glasses | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | - |
dc.identifier.doi | 10.1016/S1631-0748(02)01442-X | - |
dc.author.google | Heo, J | - |
dc.relation.volume | 5 | - |
dc.relation.issue | 11 | - |
dc.relation.startpage | 739 | - |
dc.relation.lastpage | 749 | - |
dc.contributor.id | 10054646 | - |
dc.relation.journal | COMPTES RENDUS CHIMIE | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | COMPTES RENDUS CHIMIE, v.5, no.11, pp.739 - 749 | - |
dc.identifier.wosid | 000181309400009 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 749 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 739 | - |
dc.citation.title | COMPTES RENDUS CHIMIE | - |
dc.citation.volume | 5 | - |
dc.contributor.affiliatedAuthor | Heo, J | - |
dc.identifier.scopusid | 2-s2.0-0037907685 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 13 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | OPTICAL-FIBER AMPLIFIERS | - |
dc.subject.keywordPlus | GA-S GLASSES | - |
dc.subject.keywordPlus | MULTIPHONON RELAXATION | - |
dc.subject.keywordPlus | MU-M | - |
dc.subject.keywordPlus | SPECTROSCOPIC ANALYSIS | - |
dc.subject.keywordPlus | OXIDE GLASSES | - |
dc.subject.keywordPlus | FLUORESCENCE | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | EU3+ | - |
dc.subject.keywordPlus | DEPENDENCE | - |
dc.subject.keywordAuthor | chalcohalide glasses | - |
dc.subject.keywordAuthor | emission properties | - |
dc.subject.keywordAuthor | phonon side band | - |
dc.subject.keywordAuthor | Raman spectroscopy | - |
dc.subject.keywordAuthor | local structure | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
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