Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238223
J. Chern, Yu-Sheng Wang, M. Lu, J. Lih, Ming-Chang Chen, Yen-Chun Huang, Kuan-Hung Chen
Pendry's superlens has been verified in microwave optics analog with meta-materials. Simulation with finite-element solver of Maxwell equations is further used to explore the feature. Aberration-like issues are also discussed.
{"title":"Breaking diffraction limit with meta-materials","authors":"J. Chern, Yu-Sheng Wang, M. Lu, J. Lih, Ming-Chang Chen, Yen-Chun Huang, Kuan-Hung Chen","doi":"10.1109/QELS.2003.238223","DOIUrl":"https://doi.org/10.1109/QELS.2003.238223","url":null,"abstract":"Pendry's superlens has been verified in microwave optics analog with meta-materials. Simulation with finite-element solver of Maxwell equations is further used to explore the feature. Aberration-like issues are also discussed.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"26 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":"83601463","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238318
M. Wegener, T. Tritschler, O. Mucke, U. Morgner, F. Kartner
We discuss semiconductor nonlinear optics in the nonperturbative few-cycle regime. In particular, we introduce "camouflage third-harmonic generation" and speculate about the possibility to determine the CEO phase itself.
{"title":"Determining the carrier-envelope frequency and phase by few-cycle nonlinear optics in semiconductors","authors":"M. Wegener, T. Tritschler, O. Mucke, U. Morgner, F. Kartner","doi":"10.1109/QELS.2003.238318","DOIUrl":"https://doi.org/10.1109/QELS.2003.238318","url":null,"abstract":"We discuss semiconductor nonlinear optics in the nonperturbative few-cycle regime. In particular, we introduce \"camouflage third-harmonic generation\" and speculate about the possibility to determine the CEO phase itself.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"221 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":"83476005","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238267
J. Fan, A. Dogariu, L.J. Wang
Totally internal reflected beam can be amplified if the lower-index medium has gain. We examine the energy flux and the Goos Manchen shift for various cases.
{"title":"Enhanced total internal reflection by an active medium","authors":"J. Fan, A. Dogariu, L.J. Wang","doi":"10.1109/QELS.2003.238267","DOIUrl":"https://doi.org/10.1109/QELS.2003.238267","url":null,"abstract":"Totally internal reflected beam can be amplified if the lower-index medium has gain. We examine the energy flux and the Goos Manchen shift for various cases.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"24 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":"91529723","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238336
A. Qarry, R. Rapaport, L. Pfeiffer, E. Cohen, A. Ron
We present a study of a microcavity polariton system in the presence of an optically induced electron gas. Angle resolved photoluminescence measurements with nonresonant excitation show enhanced emission from the k /spl ap/ 0 states as the electron density is increased. This indicates that electron-polariton scattering can assist in relaxing the polariton bottleneck.
{"title":"Exciton polariton emission enhancement in semiconductor microcavities containing an optically induced electron gas","authors":"A. Qarry, R. Rapaport, L. Pfeiffer, E. Cohen, A. Ron","doi":"10.1109/QELS.2003.238336","DOIUrl":"https://doi.org/10.1109/QELS.2003.238336","url":null,"abstract":"We present a study of a microcavity polariton system in the presence of an optically induced electron gas. Angle resolved photoluminescence measurements with nonresonant excitation show enhanced emission from the k /spl ap/ 0 states as the electron density is increased. This indicates that electron-polariton scattering can assist in relaxing the polariton bottleneck.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"24 1 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":"91051723","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237848
J. Lupton, J. Muller, F. Schindler, U. Lemmer, J. Feldman, M. Anni, R. Cingolani, U. Scherf
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237852
H. Htoon, J. Hollingsworth, A. Malko, R. Dickerson, V. Klimov
Studies of Auger recombination in size/shape-controlled CdSe nanoparticles reveal that elongated nanocrystals provide almost independent control of the emission wavelength (diameter) and the Auger recombination rate (length). The results suggest that shape control may be the key to developing practical lasing applications.
{"title":"Zero- to one-dimensional transition and Auger recombination in semiconductor quantum rods","authors":"H. Htoon, J. Hollingsworth, A. Malko, R. Dickerson, V. Klimov","doi":"10.1109/QELS.2003.237852","DOIUrl":"https://doi.org/10.1109/QELS.2003.237852","url":null,"abstract":"Studies of Auger recombination in size/shape-controlled CdSe nanoparticles reveal that elongated nanocrystals provide almost independent control of the emission wavelength (diameter) and the Auger recombination rate (length). The results suggest that shape control may be the key to developing practical lasing applications.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"85 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":"76855412","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238444
J. Hudock, N. Efremidis, D. Christodoulides
We demonstrate that the discrete diffraction properties of a 2-D waveguide array can be effectively altered depending on the propagation k-vector within the Brillouin zone of the lattice. In general, this diffraction behavior is anisotropic, and therefore, allows the existence of discrete elliptic solitons.
{"title":"Diffraction management and elliptic discrete solitons in two-dimensional waveguide array lattices","authors":"J. Hudock, N. Efremidis, D. Christodoulides","doi":"10.1109/QELS.2003.238444","DOIUrl":"https://doi.org/10.1109/QELS.2003.238444","url":null,"abstract":"We demonstrate that the discrete diffraction properties of a 2-D waveguide array can be effectively altered depending on the propagation k-vector within the Brillouin zone of the lattice. In general, this diffraction behavior is anisotropic, and therefore, allows the existence of discrete elliptic solitons.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"296 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":"77925084","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238263
A. Zrenner, E. Beham, S. Stufler, F. Findeis, M. Bichler, G. Abstreiter
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237855
T. Hasegawa, T. Nishioka, H. Ishizuka, J. Abe, M. Matsui, Shigeki Takeuchi
We have successfully implemented telecom-wavelength quantum cryptosystem over 87.5 km (world's longest) including error correction and privacy amplification. We confirmed that key distribution was performed at a rate of 7.2 bps with a 7.6% QBER.
{"title":"Experimental realization of quantum cryptosystem over 87 km","authors":"T. Hasegawa, T. Nishioka, H. Ishizuka, J. Abe, M. Matsui, Shigeki Takeuchi","doi":"10.1109/QELS.2003.237855","DOIUrl":"https://doi.org/10.1109/QELS.2003.237855","url":null,"abstract":"We have successfully implemented telecom-wavelength quantum cryptosystem over 87.5 km (world's longest) including error correction and privacy amplification. We confirmed that key distribution was performed at a rate of 7.2 bps with a 7.6% QBER.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"31 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":"78220790","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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237851
T. Basché, T. Christ, F. Kulzer, A. Herrmann, E. Reuther, K. Mullen
We have investigated multichromophoric assemblies composed of a variable number of chromophores by single molecule spectroscopy. Specific spectral signatures have allowed to distinguish at the single molecule level between molecular dimers representing strong and weak electronic dipole-dipole coupling. By using fluorescence excitation spectroscopy at low temperature, the sharp purely electronic zero-phonon lines of single chromophores within a single dendrimer containing four chromophores could be isolated in the frequency domain.
{"title":"Single molecule spectroscopy of multichromophoric assemblies","authors":"T. Basché, T. Christ, F. Kulzer, A. Herrmann, E. Reuther, K. Mullen","doi":"10.1109/QELS.2003.237851","DOIUrl":"https://doi.org/10.1109/QELS.2003.237851","url":null,"abstract":"We have investigated multichromophoric assemblies composed of a variable number of chromophores by single molecule spectroscopy. Specific spectral signatures have allowed to distinguish at the single molecule level between molecular dimers representing strong and weak electronic dipole-dipole coupling. By using fluorescence excitation spectroscopy at low temperature, the sharp purely electronic zero-phonon lines of single chromophores within a single dendrimer containing four chromophores could be isolated in the frequency domain.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"115 1","pages":"4 pp.-"},"PeriodicalIF":0.0,"publicationDate":"2003-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77923045","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}
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