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

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Collapse of a homogeneous Bose-Einstein condensate 均匀玻色-爱因斯坦凝聚体的坍缩
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238226
J. K. Chin, J. Vogels, T. Mukaiyama, K. Xu, J. Abo-Shaeer, D.E. Miller, W. Ketterle
{"title":"Collapse of a homogeneous Bose-Einstein condensate","authors":"J. K. Chin, J. Vogels, T. Mukaiyama, K. Xu, J. Abo-Shaeer, D.E. Miller, W. Ketterle","doi":"10.1109/QELS.2003.238226","DOIUrl":"https://doi.org/10.1109/QELS.2003.238226","url":null,"abstract":"We probe the collapse of large attractive Bose-Einstein condensates. We observe the amplification of a local instability by seeding a momentum state p and switching the scattering length negative via a Feshbach resonance. We also observe the appearance of atoms in the conjugate momentum state.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"79 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":"79239446","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
Coherent nonlinear optical response from single GaAs quantum dot trions 单个砷化镓量子点trions的相干非线性光学响应
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.237914
M. Gurudev Dutt, J. Cheng, D. Steel, A. Bracker, D. Gammon, L. Sham
{"title":"Coherent nonlinear optical response from single GaAs quantum dot trions","authors":"M. Gurudev Dutt, J. Cheng, D. Steel, A. Bracker, D. Gammon, L. Sham","doi":"10.1109/QELS.2003.237914","DOIUrl":"https://doi.org/10.1109/QELS.2003.237914","url":null,"abstract":"Coherent nonlinear optical measurements on individual charged quantum dots show trion dipole dephasing rates comparable to single excitons with negligible contributions from pure dephasing. The results are a step towards full coherent optical control of single electron spins.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"1467 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":"80768888","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
Nanooptics on single magnetic semiconductor quantum dots 单磁性半导体量子点的纳米光学
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.237915
H. Schomig, S. Halm, G. Bacher, A. Forchel, A. A. Maksimov, P. Dorozhkin, V. Kulakovskii, M. Dobrowolska, J. Furdyna
{"title":"Nanooptics on single magnetic semiconductor quantum dots","authors":"H. Schomig, S. Halm, G. Bacher, A. Forchel, A. A. Maksimov, P. Dorozhkin, V. Kulakovskii, M. Dobrowolska, J. Furdyna","doi":"10.1109/QELS.2003.237915","DOIUrl":"https://doi.org/10.1109/QELS.2003.237915","url":null,"abstract":"We demonstrate the ability to monitor the magnetization of a single CdSe/ZnMnSe magnetic quantum dot by means of nano-optical spectroscopy. The average magnetic moment as well as statistical magnetic fluctuations are extracted from our data.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"11 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":"80837892","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
Wave propagation in periodically-curved waveguides: the quantum-mechanical analogy 周期性弯曲波导中的波传播:量子力学类比
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238634
D. Janner, S. Longhi, M. Marano, P. Laporta
{"title":"Wave propagation in periodically-curved waveguides: the quantum-mechanical analogy","authors":"D. Janner, S. Longhi, M. Marano, P. Laporta","doi":"10.1109/QELS.2003.238634","DOIUrl":"https://doi.org/10.1109/QELS.2003.238634","url":null,"abstract":"The properties of beam propagation in a periodically-curved optical waveguide beyond the usual perturbative approach are theoretically studied. The existence of unusual and exotic effects, such as dynamic beam splitting, dynamic directional coupling, and reduction of radiation losses are also shown. These unusual and exotic effects are fully similar to the phenomena of dynamic wave function stabilization, ionization quenching and wavepacket dichotomy encountered in multiphoton radiation-matter processes with super-intense and high-frequency laser fields.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"10 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":"87714253","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
Experimental implementation of Hardy's paradox 哈代悖论的实验实现
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238619
J. Lundeen, K. Resch, A. Steinberg
{"title":"Experimental implementation of Hardy's paradox","authors":"J. Lundeen, K. Resch, A. Steinberg","doi":"10.1109/QELS.2003.238619","DOIUrl":"https://doi.org/10.1109/QELS.2003.238619","url":null,"abstract":"Hardy's paradox, previously unamenable to direct experimental test, brings to light some of the striking difficulties in the interpretation of indirect quantum measurements. Using a newly developed 'photon switch,' we implement this proposal.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"23 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":"87832295","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
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
Influence of non-radiative transfer on the ultrafast electron dynamics of metallic nanoparticles 非辐射传递对金属纳米粒子超快电子动力学的影响
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238118
S. Volz, K. Joulain, J. Mulet, R. Carminati, J. Greffet
{"title":"Influence of non-radiative transfer on the ultrafast electron dynamics of metallic nanoparticles","authors":"S. Volz, K. Joulain, J. Mulet, R. Carminati, J. Greffet","doi":"10.1109/QELS.2003.238118","DOIUrl":"https://doi.org/10.1109/QELS.2003.238118","url":null,"abstract":"Ultrafast dynamics of electron relaxation in a nanometallic particle has been the subject of many studies in the past ten years. New and partially unexplained behaviours have been observed experimentally by different groups. In this paper we show that by introducing a decay channel not taken into account so far, it is possible to interpret the size and fluence dependence of the decay time observed experimentally.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"37 3","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":"91486554","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
Dramatic impact of two photon absorption on multi soliton excitation in non-critically phase-matched biaxial crystals 非临界相位匹配双轴晶体中双光子吸收对多孤子激发的显著影响
Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. Pub Date : 2003-06-06 DOI: 10.1109/QELS.2003.238157
S. Polyakov, L. Jankovic, G. Stegeman, C. Bosshard, P. Gunter
{"title":"Dramatic impact of two photon absorption on multi soliton excitation in non-critically phase-matched biaxial crystals","authors":"S. Polyakov, L. Jankovic, G. Stegeman, C. Bosshard, P. Gunter","doi":"10.1109/QELS.2003.238157","DOIUrl":"https://doi.org/10.1109/QELS.2003.238157","url":null,"abstract":"We demonstrate experimentally and numerically that strong two photon absorption affects multiple quadratic soliton generation by high power 2D beams in a type-I biaxial crystal (KNbO/sub 3/). Simulations are in a good agreement with the experiment.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"9 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":"91269323","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
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