Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238507
O. Cohen, T. Schwartz, J. Fleischer, M. Segev, D. Christodoulides
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238339
M. Phillips, Hailin Wang, I. Rumyantsev, N. Kwong, R. Takayama, R. Binder
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238216
Z.S. Yang, N. Kwong, R. Takayama, R. Binder
Ultrafast coherent dynamics of optically-inactive excitons in photo-excited quantum wells are investigated. The exciton momentum distribution follows an interesting moving pattern driven by the Coulomb coupling between the interband polarization and excitons with non-zero momenta.
{"title":"Coherent dynamics of optically-inactive excitons in semiconductor quantum wells","authors":"Z.S. Yang, N. Kwong, R. Takayama, R. Binder","doi":"10.1109/QELS.2003.238216","DOIUrl":"https://doi.org/10.1109/QELS.2003.238216","url":null,"abstract":"Ultrafast coherent dynamics of optically-inactive excitons in photo-excited quantum wells are investigated. The exciton momentum distribution follows an interesting moving pattern driven by the Coulomb coupling between the interband polarization and excitons with non-zero momenta.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"3 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":"76441619","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.2003.237863
J. Wang, A. Khodaparast, J. Kono, T. Słupinski, A. Owia, H. Munekata
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238176
Y. Prior, I. Averbukh
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238626
D. Akimov, O. A. Kolevatova, A. Fedotov, S. Konorov, A. A. Podshivalov, A.M. Zhelticov, A. Ivanov, M. Alfimov, A. Petrov, T. Birks, W. Wadsworth, P. Russell
Doubly phase-matched cascaded four-wave mixing in tapered fibers is demonstrated using femtosecond Cr:forsterite laser pulses. The first stage of this cascade involves phase-matched third-harmonic generation. At the second stage, the third harmonic and fundamental radiation generate new spectral components through phase-matched parametric wave mixing.
{"title":"Doubly phase-matched cascaded wave mixing in tapered fibers","authors":"D. Akimov, O. A. Kolevatova, A. Fedotov, S. Konorov, A. A. Podshivalov, A.M. Zhelticov, A. Ivanov, M. Alfimov, A. Petrov, T. Birks, W. Wadsworth, P. Russell","doi":"10.1109/QELS.2003.238626","DOIUrl":"https://doi.org/10.1109/QELS.2003.238626","url":null,"abstract":"Doubly phase-matched cascaded four-wave mixing in tapered fibers is demonstrated using femtosecond Cr:forsterite laser pulses. The first stage of this cascade involves phase-matched third-harmonic generation. At the second stage, the third harmonic and fundamental radiation generate new spectral components through phase-matched parametric wave mixing.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"49 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":"81770903","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.2003.237808
Jimin Zhao, A. Bragas, R. Merlin, D. J. Lockwood
We demonstrate squeezing of the lattice magnetization in antiferromagnetic MnF/sub 2/. Our method uses femtosecond optical pulses to create coherences involving magnon pairs.
{"title":"Observation of spin squeezing in MnF/sub 2/","authors":"Jimin Zhao, A. Bragas, R. Merlin, D. J. Lockwood","doi":"10.1109/QELS.2003.237808","DOIUrl":"https://doi.org/10.1109/QELS.2003.237808","url":null,"abstract":"We demonstrate squeezing of the lattice magnetization in antiferromagnetic MnF/sub 2/. Our method uses femtosecond optical pulses to create coherences involving magnon pairs.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"1 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":"89411154","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.2003.237976
W. Mak, P. Chu, B. Malomed
Results of a systematic study of collisions between moving solitons in fiber grating are presented. Various outcomes of the collision are identified, the most interesting one being merger of the solitons into a single zero-velocity pulse.
{"title":"Collision of gap solitons in fiber Bragg grating","authors":"W. Mak, P. Chu, B. Malomed","doi":"10.1109/QELS.2003.237976","DOIUrl":"https://doi.org/10.1109/QELS.2003.237976","url":null,"abstract":"Results of a systematic study of collisions between moving solitons in fiber grating are presented. Various outcomes of the collision are identified, the most interesting one being merger of the solitons into a single zero-velocity pulse.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"1 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":"87356800","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.2003.237856
T. Debuisschert, W. Boucher
Coherent one photon pulses are sent with four possible time delays with respect to a reference. Ambiguity of the photon time detection resulting from pulses overlap combined with interferometric measurement allows for secure key exchange.
{"title":"4 states protocol for time coding quantum key distribution","authors":"T. Debuisschert, W. Boucher","doi":"10.1109/QELS.2003.237856","DOIUrl":"https://doi.org/10.1109/QELS.2003.237856","url":null,"abstract":"Coherent one photon pulses are sent with four possible time delays with respect to a reference. Ambiguity of the photon time detection resulting from pulses overlap combined with interferometric measurement allows for secure key exchange.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"34 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":"89950736","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.2003.238512
Yanwen Wu, Xiaoqin Li, D. Steel, D. Gammon, D. Katzer, D. Park, L. Sham
Coherent optical control of qubits in single quantum dots shows that rotation of a single qubit can be achieved with multiple phase-locked pulses. Two pulses with well-defined pulse areas (/spl sim//spl pi//2) are phase-adjusted to rotate the qubit between |0> and |1>.
{"title":"Qubit rotation with multiple phase-locked pulses in single quantum dots","authors":"Yanwen Wu, Xiaoqin Li, D. Steel, D. Gammon, D. Katzer, D. Park, L. Sham","doi":"10.1109/QELS.2003.238512","DOIUrl":"https://doi.org/10.1109/QELS.2003.238512","url":null,"abstract":"Coherent optical control of qubits in single quantum dots shows that rotation of a single qubit can be achieved with multiple phase-locked pulses. Two pulses with well-defined pulse areas (/spl sim//spl pi//2) are phase-adjusted to rotate the qubit between |0> and |1>.","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":"87828171","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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