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Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference最新文献

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Continuum contribution to excitonic four-wave mixing 连续体对激子四波混频的贡献
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-06-07 DOI: 10.1109/EQEC.1996.561656
D. Birkedal, Karim El, Hvam, Jørn Märcher
{"title":"Continuum contribution to excitonic four-wave mixing","authors":"D. Birkedal, Karim El, Hvam, Jørn Märcher","doi":"10.1109/EQEC.1996.561656","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561656","url":null,"abstract":"Summary form only given. We present an experimental and theoretical investigation of ultrafast transient four-wave mixing (TFWM) of GaAs-AlGaAs quantum wells for simultaneous excitation of exciton and continuum states. Recent TFWM experiments on semiconductors have shown unexpected results when both discrete exciton states and continuum states have been excited simultaneously by ultrafast laser pulses. The decay of the signal, as a function of delay, is significantly faster than the dephasing time of the excitons.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84393817","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
Bose-Einstein condensation in an ultracold gas 超冷气体中的玻色-爱因斯坦凝聚
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-06-07 DOI: 10.1142/S0217979297001581
E. Cornell, M. Anderson, J. Ensher, D. Jin, M. Matthews, C. Wieman
{"title":"Bose-Einstein condensation in an ultracold gas","authors":"E. Cornell, M. Anderson, J. Ensher, D. Jin, M. Matthews, C. Wieman","doi":"10.1142/S0217979297001581","DOIUrl":"https://doi.org/10.1142/S0217979297001581","url":null,"abstract":"Summary form only given. We have observed Bose-Einstein condensation in a dilute vapor of rubidium atoms cooled to below 100 nanoKelvin. This was achieved by laser cooling and trapping followed by magnetic trapping and evaporative cooling.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87803213","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
3-D photonic crystals operating at optical wavelengths 以光学波长工作的三维光子晶体
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-06-07 DOI: 10.1007/978-94-009-0313-5_12
C. Cheng, A. Scherer, V. Arbet-Engels, E. Yablonovitch
{"title":"3-D photonic crystals operating at optical wavelengths","authors":"C. Cheng, A. Scherer, V. Arbet-Engels, E. Yablonovitch","doi":"10.1007/978-94-009-0313-5_12","DOIUrl":"https://doi.org/10.1007/978-94-009-0313-5_12","url":null,"abstract":"","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77922308","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: 8
Femtosecond near-field spin microscopy to digital magnetic heterostructures 飞秒近场自旋显微镜的数字磁异质结构
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-06-07 DOI: 10.1063/1.362101
J. Levy, V. Nikitin, J. Kikkawa, D. Awschalom, N. Samarth
{"title":"Femtosecond near-field spin microscopy to digital magnetic heterostructures","authors":"J. Levy, V. Nikitin, J. Kikkawa, D. Awschalom, N. Samarth","doi":"10.1063/1.362101","DOIUrl":"https://doi.org/10.1063/1.362101","url":null,"abstract":"Summary form only given. A femtosecond-resolved low-temperature near-field scanning optical microscope (NSOM) is used to monitor the spatio-temporal evolution of excitonic spins in a magnetic semiconductor, ZnSe-ZnCdSe MBE-grown semiconductor quantum well structures that are laterally patterned.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84543514","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: 32
Laser wakefield excitation and measurement by femtosecond longitudinal interferometry 激光尾流场激发与飞秒纵向干涉测量
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-04-01 DOI: 10.2172/238564
C. Siders, S. P. Le Blanc, D. Fisher, T. Tajima, M. Downer, A. Babine, A. Stepanov, A. Sergeev
{"title":"Laser wakefield excitation and measurement by femtosecond longitudinal interferometry","authors":"C. Siders, S. P. Le Blanc, D. Fisher, T. Tajima, M. Downer, A. Babine, A. Stepanov, A. Sergeev","doi":"10.2172/238564","DOIUrl":"https://doi.org/10.2172/238564","url":null,"abstract":"Summary form only given. The ability to measure plasma wave microstructure directly is important for addressing fundamental issues of wakefield generation and propagation. We report femtosecond time-resolved measurements of the longitudinal and radial structure of laser wakefield oscillations using an all optical technique known as photon acceleration.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87118476","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: 13
Incoherently coupled soliton pairs in biased photorefractive crystals 偏置光折变晶体中的非相干耦合孤子对
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-03-25 DOI: 10.1063/1.116659
D. Christodoulides, S. R. Singh, M. I. Carvalho, M. Segev
{"title":"Incoherently coupled soliton pairs in biased photorefractive crystals","authors":"D. Christodoulides, S. R. Singh, M. I. Carvalho, M. Segev","doi":"10.1063/1.116659","DOIUrl":"https://doi.org/10.1063/1.116659","url":null,"abstract":"Summary form only given. Recently it was demonstrated that spatial optical solitons at /spl mu/W power levels can be supported in photorefractive (PR) media. We show that a new type of incoherently coupled soliton pairs is possible under steady-state conditions provided that their carrier beams share the same polarization and wavelength and are mutually incoherent. They can be readily realized in a simple experimental setup where the optical beams co-propagate collinearly in a biased PR crystal in which case they experience equal electrooptic coefficients.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80641846","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: 199
Measurement of the duration of high harmonic pulses 测量高谐波脉冲的持续时间
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1996-01-01 DOI: 10.1103/PhysRevA.56.3870
E. Constant, V. Taranukhin, A. Stolow, B.P. Corkum
{"title":"Measurement of the duration of high harmonic pulses","authors":"E. Constant, V. Taranukhin, A. Stolow, B.P. Corkum","doi":"10.1103/PhysRevA.56.3870","DOIUrl":"https://doi.org/10.1103/PhysRevA.56.3870","url":null,"abstract":"Summary form only given. High harmonics are generated during the ionization of an atomic gas and therefore the probability of ionization, the number of unionized atoms, and the phase matching effects will impose a natural temporal envelope on the harmonic generation. We made some simulations which showed the maximal, minimal, and averaged possible values of the intensity of the harmonic as a function of the angular frequency detuning multiplied by the length of the harmonic pulse. From the envelope of the maximum signal we can extract the high harmonic pulse duration.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73441858","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: 29
Near-field single molecule spectroscopy 近场单分子光谱
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1995-04-07 DOI: 10.1117/12.206436
Sunney Xie, P. Lu, R. Bian, E. Sanchez, P. Leung
{"title":"Near-field single molecule spectroscopy","authors":"Sunney Xie, P. Lu, R. Bian, E. Sanchez, P. Leung","doi":"10.1117/12.206436","DOIUrl":"https://doi.org/10.1117/12.206436","url":null,"abstract":"Recent advances in near-field scanning optical microscopy (NSOM) make it possible to image single molecule emission with nanometric resolution and extend the single molecule spectroscopy work done at cryogenic temperature to the room temperature regime. With NSOM, molecular fluorescence can be spectrally and temporally resolved, allowing detailed studies of molecular interaction and dynamics on a single molecule basis with a spatial resolution beyond the diffraction limit.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75921674","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
Interaction of far-infrared radiation with hot two-dimensional holes in the quantum wells GaAs/Al/sub 1-x/Ga/sub x/As and Ge/Ge/sub 1-x/Si/sub x/ 量子阱GaAs/Al/sub - 1-x/Ga/sub -x/ As和Ge/Ge/sub - 1-x/Si/sub -x/中远红外辐射与热二维空穴的相互作用
Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference Pub Date : 1900-01-01 DOI: 10.1109/eqec.1996.561599
V. Aleshkin, L. Vorobjev, D. Donetsky, T. Dumelow, A. Kastalsky, O. Kuznetsov, G. Mirjalili, L. K. Orlov, T. J. Parker, S. Farjami Shayesteh
{"title":"Interaction of far-infrared radiation with hot two-dimensional holes in the quantum wells GaAs/Al/sub 1-x/Ga/sub x/As and Ge/Ge/sub 1-x/Si/sub x/","authors":"V. Aleshkin, L. Vorobjev, D. Donetsky, T. Dumelow, A. Kastalsky, O. Kuznetsov, G. Mirjalili, L. K. Orlov, T. J. Parker, S. Farjami Shayesteh","doi":"10.1109/eqec.1996.561599","DOIUrl":"https://doi.org/10.1109/eqec.1996.561599","url":null,"abstract":"Summary form only given. The present work is a study of FIR emission from p-type GaAs-AlGaAs and Ge-GeSi structures caused by direct transitions of hot 2D holes between quantum-well subbands and modulation of FIR laser radiation under heating of 2D holes in quantum wells (QW). These phenomena were not observed before.","PeriodicalId":21999,"journal":{"name":"Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78452481","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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