发布求助
文献互助 智能选刊 最新文献

Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.最新文献

筛选
英文 中文
Ultrafast photoinduced softening in a ferromagnetic semiconductor 铁磁半导体的超快光致软化
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.237863
J. Wang, A. Khodaparast, J. Kono, T. Słupinski, A. Owia, H. Munekata
{"title":"Ultrafast photoinduced softening in a ferromagnetic semiconductor","authors":"J. Wang, A. Khodaparast, J. Kono, T. Słupinski, A. Owia, H. Munekata","doi":"10.1109/QELS.2003.237863","DOIUrl":"https://doi.org/10.1109/QELS.2003.237863","url":null,"abstract":"Two-color time-resolved magneto-optical Kerr spectroscopy is used to manipulate and detect the dynamics of carrier-induced ferromagnetism in III-V ferromagnetic semiconductors. Our data demonstrates that magnetic properties, e.g., the coercivity, can be tuned reversibly and nonthermally on subpicosecond time scale.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"48 1","pages":"3 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77771202","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
Single quantum dot photodiodes: Rabi-flops in a two level system with electric contacts 单量子点光电二极管:具有电触点的两电平系统中的拉比-flop
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238263
A. Zrenner, E. Beham, S. Stufler, F. Findeis, M. Bichler, G. Abstreiter
{"title":"Single quantum dot photodiodes: Rabi-flops in a two level system with electric contacts","authors":"A. Zrenner, E. Beham, S. Stufler, F. Findeis, M. Bichler, G. Abstreiter","doi":"10.1109/QELS.2003.238263","DOIUrl":"https://doi.org/10.1109/QELS.2003.238263","url":null,"abstract":"On the basis of a single semiconductor quantum dot incorporated in a photodiode we have succeeded in preparing a two-level system with electric contacts, a setup which was previously not attained on the basis of other two-level systems. By means of such a single quantum dot photodiode we demonstrate the transfer of coherent optical excitations into deterministic photocurrents. Rabi oscillations are shown to be directly reflected in the photocurrent. For optical excitation with pi-pulses we observe a quantitative photocurrent given by I=f /spl times/ e, where f is the repetition frequency of the experiment and e is the elementary charge.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"164 1","pages":"3 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78016418","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
Very efficient direct third harmonic generation in nanostructured ZnO films 纳米结构ZnO薄膜中非常有效的直接三次谐波产生
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238109
G. Petrov, V. Shcheslavskiy, V. Yakovlev, I. Ozerov, E. Chelnokov, W. Marine
{"title":"Very efficient direct third harmonic generation in nanostructured ZnO films","authors":"G. Petrov, V. Shcheslavskiy, V. Yakovlev, I. Ozerov, E. Chelnokov, W. Marine","doi":"10.1109/QELS.2003.238109","DOIUrl":"https://doi.org/10.1109/QELS.2003.238109","url":null,"abstract":"This study presents the very strong third-order nonlinear optical coefficient of nanostructured ZnO thin films. Hence, it is possible to directly generate third harmonic of ultrashort pulses with efficiency of several percent.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"370 2 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75708200","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
Multi-band vector solitons in waveguide arrays 波导阵列中的多波段矢量孤子
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238507
O. Cohen, T. Schwartz, J. Fleischer, M. Segev, D. Christodoulides
{"title":"Multi-band vector solitons in waveguide arrays","authors":"O. Cohen, T. Schwartz, J. Fleischer, M. Segev, D. Christodoulides","doi":"10.1109/QELS.2003.238507","DOIUrl":"https://doi.org/10.1109/QELS.2003.238507","url":null,"abstract":"We theoretically present vector solitons in a waveguide array whose components belong to different bands, where light in the first mode is concentrated primarily in the waveguides and the second component is a radiative mode in which light is primarily concentrated in between sites.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"30 1","pages":"3 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74579297","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
Electromagnetically-induced transparency at the exciton resonance 激子共振处的电磁诱导透明
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238339
M. Phillips, Hailin Wang, I. Rumyantsev, N. Kwong, R. Takayama, R. Binder
{"title":"Electromagnetically-induced transparency at the exciton resonance","authors":"M. Phillips, Hailin Wang, I. Rumyantsev, N. Kwong, R. Takayama, R. Binder","doi":"10.1109/QELS.2003.238339","DOIUrl":"https://doi.org/10.1109/QELS.2003.238339","url":null,"abstract":"We report the experimental demonstration of electromagnetically-induced transparency (EIT) in a GaAs quantum well, in which the absorption of an exciton resonance is reduced by more than twenty-fold. The destructive quantum interference for EIT is set up by a biexciton coherence.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"8 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76303008","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
Laser cooling of atoms and molecules via optical shaking 通过光学震动对原子和分子进行激光冷却
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238176
Y. Prior, I. Averbukh
{"title":"Laser cooling of atoms and molecules via optical shaking","authors":"Y. Prior, I. Averbukh","doi":"10.1109/QELS.2003.238176","DOIUrl":"https://doi.org/10.1109/QELS.2003.238176","url":null,"abstract":"We propose a novel generic approach to laser cooling based on non-resonant interactions with optical standing waves experiencing random sudden phase jumps. The technique, termed \"optical shaking\", is applicable to the cooling of atoms and molecules to high phase space densities and without the loss of particles typical of evaporative cooling.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"6 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79800062","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
Photoluminescence up-conversion involving surface states in colloidal CdTe quantum dots 胶体CdTe量子点中涉及表面态的光致发光上转换
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238521
Xiaoyong Wang, Jiayu Zhang, M. Xiao
{"title":"Photoluminescence up-conversion involving surface states in colloidal CdTe quantum dots","authors":"Xiaoyong Wang, Jiayu Zhang, M. Xiao","doi":"10.1109/QELS.2003.238521","DOIUrl":"https://doi.org/10.1109/QELS.2003.238521","url":null,"abstract":"Efficient photoluminescence up-conversion was observed in colloidal CdTe quantum dots with an energy gain of /spl sim/360 meV. We attribute this up-converted signal to the recombination of carriers from conduction band and hole surface states, respectively.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"4 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88640469","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
Modelling of a novel hollow-core photonic crystal fibre 一种新型空心光子晶体光纤的建模
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238270
T. Hedley, D. Bird, F. Benabid, J. Knight, P. Russell
{"title":"Modelling of a novel hollow-core photonic crystal fibre","authors":"T. Hedley, D. Bird, F. Benabid, J. Knight, P. Russell","doi":"10.1109/QELS.2003.238270","DOIUrl":"https://doi.org/10.1109/QELS.2003.238270","url":null,"abstract":"A hollow-core photonic crystal fibre that guides light over a broad range of frequencies has been developed. Calculations indicate that guidance is due to a low density of states of the cladding structure near the air line.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"16 2 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83026151","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: 27
Imaging intramolecular energy transfer in conjugated polymers by single chain spectroscopy 单链光谱成像共轭聚合物分子内能量转移
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.237848
J. Lupton, J. Muller, F. Schindler, U. Lemmer, J. Feldman, M. Anni, R. Cingolani, U. Scherf
{"title":"Imaging intramolecular energy transfer in conjugated polymers by single chain spectroscopy","authors":"J. Lupton, J. Muller, F. Schindler, U. Lemmer, J. Feldman, M. Anni, R. Cingolani, U. Scherf","doi":"10.1109/QELS.2003.237848","DOIUrl":"https://doi.org/10.1109/QELS.2003.237848","url":null,"abstract":"We report on the time resolved polarized emission from individual conjugated polymer chains as a function of temperature. Besides observing intrachain energy transfer in real time, we can also infer dephasing times from homogeneous linewidths.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"2 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74429270","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
Temperature-dependent carrier distributions and level degeneracy in self-assembled quantum dots 自组装量子点的载流子分布和能级简并
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.237996
K. Kim, T. Norris, S. Ghosh, J. Singh, P. Bhattacharya
{"title":"Temperature-dependent carrier distributions and level degeneracy in self-assembled quantum dots","authors":"K. Kim, T. Norris, S. Ghosh, J. Singh, P. Bhattacharya","doi":"10.1109/QELS.2003.237996","DOIUrl":"https://doi.org/10.1109/QELS.2003.237996","url":null,"abstract":"Femtosecond spectroscopy is used to study the transparency conditions in In/sub 0.4/Ga/sub 0.6/As self-organized quantum dots. The spatial degeneracy of excited state is experimentally observed and a multilevel model is shown to be consistent with the temperature-dependent behavior.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"21 1","pages":"2 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78751188","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
首页 上一页 下一页 尾页
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：481959085
Book学术官方微信