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HIGHLY EFFICIENT SENSITIZING OF ERBIUM ION LUMINESCENCE IN SIZE-CONTROLLED NANOCRYSTALLINE SI/SIO2 SUPERLATTICE STRUCTURES 尺寸控制纳米晶si / sio2超晶格结构中铒离子发光的高效敏化
Physics Letters Pub Date : 2004-04-01 DOI: 10.1063/1.1690465
V. Timoshenko, M. Lisachenko, B. Kamenev, O. Shalygina, P. Kashkarov, J. Heitmann, Michael Schmidt, M. Zachrias
{"title":"HIGHLY EFFICIENT SENSITIZING OF ERBIUM ION LUMINESCENCE IN SIZE-CONTROLLED NANOCRYSTALLINE SI/SIO2 SUPERLATTICE STRUCTURES","authors":"V. Timoshenko, M. Lisachenko, B. Kamenev, O. Shalygina, P. Kashkarov, J. Heitmann, Michael Schmidt, M. Zachrias","doi":"10.1063/1.1690465","DOIUrl":"https://doi.org/10.1063/1.1690465","url":null,"abstract":"Comparative studies of photoluminescence (PL) of undoped and Er-doped size-controlled nanocrystalline Si/SiO2 superlattice structures show that the optical excitation of Si nanocrystals can be completely transferred to the Er3+ ions in surrounding SiO2, resulting in a strong PL line at 1.5 μm. The PL yield of the Er-doped structure increases for higher photon energy of excitation and for smaller nanocrystal sizes. This highly efficient sensitizing of the Er-related PL is explained by a strong coupling between excitons confined in Si nanocrystals and neighboring Er3+ ions in their upper excited states.","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"46 1","pages":"2512"},"PeriodicalIF":0.0,"publicationDate":"2004-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84955206","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: 36
TWO-MESON ANNIHILATION OF A NUCLEON AND ANTINUCLEON 核子和反核子的双介子湮灭
Physics Letters Pub Date : 1986-01-16 DOI: 10.1016/0370-2693(86)90797-5
T. Oka, J. Vergados, 岡村 隆光, オカ タカミツ
{"title":"TWO-MESON ANNIHILATION OF A NUCLEON AND ANTINUCLEON","authors":"T. Oka, J. Vergados, 岡村 隆光, オカ タカミツ","doi":"10.1016/0370-2693(86)90797-5","DOIUrl":"https://doi.org/10.1016/0370-2693(86)90797-5","url":null,"abstract":"","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1986-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86139093","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: 19
PION CONDENSATION IN A FIELD THEORY CONSISTENT WITH BULK PROPERTIES OF NUCLEAR MATTER 与核物质体积特性相一致的场理论中的介子凝聚
Physics Letters Pub Date : 1980-05-01 DOI: 10.2172/5362987
B. Banerjee
{"title":"PION CONDENSATION IN A FIELD THEORY CONSISTENT WITH BULK PROPERTIES OF NUCLEAR MATTER","authors":"B. Banerjee","doi":"10.2172/5362987","DOIUrl":"https://doi.org/10.2172/5362987","url":null,"abstract":"TWO-WEEK LOAN COPY This is a Library Copy which may be borrowed for two weeks. For a copy, Tech. Info. Division, Ext. 6782.","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"24 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1980-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85836037","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
The reaction γ p → N∗++π- at energies up to 5.8 GeV 反应γ p→N * ++π-的能量高达5.8 GeV
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91107-3
H.G. Hilpert, G. Reimann, E. Schüttler, H. Böttcher, K. Lanius, A. Meyer, A. Pose, K. Böckmann, W. Johnssen, J. Moebes, W. Tejessy, G. Harigel, G. Horlitz, E. Lohrmann, H. Meyer, G. Wolf, W.P. Swanson , M.W. Teucher, D. Lüke, D. Mönkemeyer, J. Seyerlein
{"title":"The reaction γ p → N∗++π- at energies up to 5.8 GeV","authors":"H.G. Hilpert,&nbsp;G. Reimann,&nbsp;E. Schüttler,&nbsp;H. Böttcher,&nbsp;K. Lanius,&nbsp;A. Meyer,&nbsp;A. Pose,&nbsp;K. Böckmann,&nbsp;W. Johnssen,&nbsp;J. Moebes,&nbsp;W. Tejessy,&nbsp;G. Harigel,&nbsp;G. Horlitz,&nbsp;E. Lohrmann,&nbsp;H. Meyer,&nbsp;G. Wolf,&nbsp;W.P. Swanson ,&nbsp;M.W. Teucher,&nbsp;D. Lüke,&nbsp;D. Mönkemeyer,&nbsp;J. Seyerlein","doi":"10.1016/0031-9163(66)91107-3","DOIUrl":"10.1016/0031-9163(66)91107-3","url":null,"abstract":"<div><p>Experimental results on the total and differential cross sections and on the decay angular distribution for the reaction <span><math><mtext>γp → N</mtext><msup><mi></mi><mn>∗++</mn></msup><mtext>π</mtext><msup><mi></mi><mn>-</mn></msup></math></span> at energies between 0.3 GeV and 5.8 GeV are presented and compared with theoretical predictions.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 707-710"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91107-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76996834","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: 10
Nonlocal potential barrier and the perey-effect in alpha decay 衰变中的非局域势垒和佩里效应
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91109-7
Gy. Bencze
{"title":"Nonlocal potential barrier and the perey-effect in alpha decay","authors":"Gy. Bencze","doi":"10.1016/0031-9163(66)91109-7","DOIUrl":"10.1016/0031-9163(66)91109-7","url":null,"abstract":"<div><p>It is shown that nonlocality in the alpha-nucleus potential increases the barrier penetrability. The range of nonlocality of the alpha-nucleus potential is estimated by comparing experimental and theoretical alpha decay rates.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 713-715"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91109-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84865745","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
A model for elastic scattering at high energy and large momentum transfer 高能大动量传递下的弹性散射模型
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91105-X
A.P. Contogouris
{"title":"A model for elastic scattering at high energy and large momentum transfer","authors":"A.P. Contogouris","doi":"10.1016/0031-9163(66)91105-X","DOIUrl":"10.1016/0031-9163(66)91105-X","url":null,"abstract":"<div><p>A model is presented, in which the variation of the differential cross section at large momentum transfer is determined in terms of experimentally know quantities.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 698-701"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91105-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88041307","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: 5
Quark model decay rates for spin 2+ mesons 自旋2+介子的夸克模型衰减率
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91103-6
H.R. Rubinstein, I. Talmi
{"title":"Quark model decay rates for spin 2+ mesons","authors":"H.R. Rubinstein,&nbsp;I. Talmi","doi":"10.1016/0031-9163(66)91103-6","DOIUrl":"10.1016/0031-9163(66)91103-6","url":null,"abstract":"<div><p>Both PP and PV decays can go only through symmetry breaking. An appropriate tensor interaction is introduced which is different for different quark-antiquark pairs. Agreement with experiment is good.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 693-695"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91103-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87338451","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
Spin independence of total cross sections 总横截面的自旋无关性
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91104-8
Yasuo Hara
{"title":"Spin independence of total cross sections","authors":"Yasuo Hara","doi":"10.1016/0031-9163(66)91104-8","DOIUrl":"10.1016/0031-9163(66)91104-8","url":null,"abstract":"<div><p>In the Regge pole model with the Pomeranchuk trajectory dominance, total cross sections of particles with any spin are proved to be spin independent at high energies. The factorizability of total cross sections,<span><math><msup><mi></mi><mn>σ</mn></msup><mtext>ab</mtext><msup><mi></mi><mn>(s)</mn></msup><mtext> </mtext><msup><mi></mi><mn>σ</mn></msup><mtext>cd</mtext><msup><mi></mi><mn>(s)</mn></msup><mtext> − </mtext><msup><mi></mi><mn>σ</mn></msup><mtext>ac</mtext><msup><mi></mi><mn>(s)</mn></msup><mtext> </mtext><msup><mi></mi><mn>σ</mn></msup><mtext>bd</mtext><msup><mi></mi><mn>(s)</mn></msup><mtext> </mtext><mtext>→</mtext><mtext>s →∞</mtext><mtext>0</mtext></math></span>, is also proved.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 696-698"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91104-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91357482","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
Author index of volume 23 第23卷作者索引
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91112-7
{"title":"Author index of volume 23","authors":"","doi":"10.1016/0031-9163(66)91112-7","DOIUrl":"https://doi.org/10.1016/0031-9163(66)91112-7","url":null,"abstract":"","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 721-735"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91112-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137400377","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
Evidence for π+π− resonance at 1.5–1.6 GeV in 4.7 Ge Vc π-p- interaction 4.7 GeV Vc π-p-相互作用中π+π−在1.5-1.6 GeV的共振证据
Physics Letters Pub Date : 1966-12-19 DOI: 10.1016/0031-9163(66)91111-5
V.M. Guzhavin, G.K. Kliger, V.Z. Kolganov, A.V. Lebedev, G.S. Lomkatsi, V.T. Smolyankin, A.P. Sokolov, J.A. Vetlitsky
{"title":"Evidence for π+π− resonance at 1.5–1.6 GeV in 4.7 Ge Vc π-p- interaction","authors":"V.M. Guzhavin,&nbsp;G.K. Kliger,&nbsp;V.Z. Kolganov,&nbsp;A.V. Lebedev,&nbsp;G.S. Lomkatsi,&nbsp;V.T. Smolyankin,&nbsp;A.P. Sokolov,&nbsp;J.A. Vetlitsky","doi":"10.1016/0031-9163(66)91111-5","DOIUrl":"10.1016/0031-9163(66)91111-5","url":null,"abstract":"<div><p>Among 60 000 pictures obtained by means of 55 cm hydrogen bubble chamber exposed with 4.7 <span><math><mtext>Ge V</mtext><mtext>c</mtext></math></span> π<sup>-</sup> beam 349 events of the reaction <em>π</em><sup>-</sup><em>p</em> → <em>π</em><sup>+</sup><em>π</em><sup>-</sup><em>n</em> at small four momentum transfer have been selected. The distribution of the effective mass of π<sup>+</sup>π<sup>−</sup> system shows ϱ<sup>o</sup>-, f<sup>o</sup>- resonances and some enhancement at 1.5 - 1.6 GeV that may be interpreted as a resonance with <em>M</em> = 1549 ±30 <em>MeV</em>, <em>Γ</em> = 100 ±25 <em>MeV</em>.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 12","pages":"Pages 719-720"},"PeriodicalIF":0.0,"publicationDate":"1966-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)91111-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83300325","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
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