S. Maćkowski, T. Gurung, H. Jackson, L. Smith, T. Schallenberg, K. Brunner, L. Molenkamp
We use slit-confocal microscopy to study spatial diffusion of carriers between quantum dot ensembles coupled through a wide wire-like barrier. When carriers are photo-excited above in this barrier the diffusion on a scale of 5 microns has been observed
{"title":"Spatial diffusion of carriers in a quantum dot system grown by shadow mask controlled epitaxy","authors":"S. Maćkowski, T. Gurung, H. Jackson, L. Smith, T. Schallenberg, K. Brunner, L. Molenkamp","doi":"10.1063/1.1994278","DOIUrl":"https://doi.org/10.1063/1.1994278","url":null,"abstract":"We use slit-confocal microscopy to study spatial diffusion of carriers between quantum dot ensembles coupled through a wide wire-like barrier. When carriers are photo-excited above in this barrier the diffusion on a scale of 5 microns has been observed","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128527474","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 : 2004-05-21DOI: 10.1364/IQEC.2004.ITUI15
B. Shan, Chun Wang, Z. Chang
A kilohertz laser producing 4 mJ pulses with 25 fs duration and 26% conversion efficiency was developed using a single-stage multi-pass amplifier. The laser signal spot size inside the Ti:sapphire gain medium was changed in a unique way to obtain high gain and high efficiency without damaging the crystal. To the best of our knowledge, this is the highest pulse energy ever obtained from kHz lasers with a single-stage multi-pass amplifier
{"title":"A high-output, high efficiency femtosecond laser based on a single-stage multipass amplifier","authors":"B. Shan, Chun Wang, Z. Chang","doi":"10.1364/IQEC.2004.ITUI15","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITUI15","url":null,"abstract":"A kilohertz laser producing 4 mJ pulses with 25 fs duration and 26% conversion efficiency was developed using a single-stage multi-pass amplifier. The laser signal spot size inside the Ti:sapphire gain medium was changed in a unique way to obtain high gain and high efficiency without damaging the crystal. To the best of our knowledge, this is the highest pulse energy ever obtained from kHz lasers with a single-stage multi-pass amplifier","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115451657","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}
D. Ciampini, M. d'Arcy, J. M. Grossman, K. Helmerson, P. Lett, W. Phillips, S. Rolston
We implement a quantum random walk on a line using a Bose-Einstein condensate. Periodically applied Bragg diffraction pulses split the condensate into stationary and moving components, yielding clearly non-classical spatial distributions
{"title":"Realization of a quantum random walk with ultracold atoms","authors":"D. Ciampini, M. d'Arcy, J. M. Grossman, K. Helmerson, P. Lett, W. Phillips, S. Rolston","doi":"10.1364/IQEC.2004.ITUA6","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITUA6","url":null,"abstract":"We implement a quantum random walk on a line using a Bose-Einstein condensate. Periodically applied Bragg diffraction pulses split the condensate into stationary and moving components, yielding clearly non-classical spatial distributions","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115702543","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}
J. Itatani, J. Levesque, D. Zeidler, M. Spanner, P. Corkum, D. Villeneuve
High harmonics produced in aligned molecules contain the structural information of bound-state electronic states. We have successfully reconstructed tomographic images of the highest occupied molecular orbital (HOMO) of N2 from a set of harmonic spectra
{"title":"Molecular orbital tomography using high harmonic generation","authors":"J. Itatani, J. Levesque, D. Zeidler, M. Spanner, P. Corkum, D. Villeneuve","doi":"10.1364/IQEC.2004.IPDB8","DOIUrl":"https://doi.org/10.1364/IQEC.2004.IPDB8","url":null,"abstract":"High harmonics produced in aligned molecules contain the structural information of bound-state electronic states. We have successfully reconstructed tomographic images of the highest occupied molecular orbital (HOMO) of N2 from a set of harmonic spectra","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124275726","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}
N. Zheludev, A. S. Schwanecke, A. Potts, D. Bagnall, A. Zayats, E. Wright
We demonstrate that optical excitations in chiral plasmon nanostructures exhibit broken time reversal symmetry and fractional electromagnetic angular momentum, both of which are essential characteristics of anyon quasiparticles
{"title":"Broken time-reversal and electromagnetic anyon quasiparticles in 2d chiral plasmon nanostructures","authors":"N. Zheludev, A. S. Schwanecke, A. Potts, D. Bagnall, A. Zayats, E. Wright","doi":"10.1364/IQEC.2004.ITHB4","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITHB4","url":null,"abstract":"We demonstrate that optical excitations in chiral plasmon nanostructures exhibit broken time reversal symmetry and fractional electromagnetic angular momentum, both of which are essential characteristics of anyon quasiparticles","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127308109","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 : 2004-05-21DOI: 10.1364/IQEC.2004.ITHG12
M. Nelson, Z. Ying, A. Bouhelier
Photoluminescence continuum generation from semicontinuous silver and gold films was observed between 500 and 1050 nm, with efficiency much higher near the percolation threshold and with similar spectral dependence for the two metals
{"title":"Large increase in spectral continuum generation efficiency of silver and gold semicontinuous films near the percolation threshold","authors":"M. Nelson, Z. Ying, A. Bouhelier","doi":"10.1364/IQEC.2004.ITHG12","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITHG12","url":null,"abstract":"Photoluminescence continuum generation from semicontinuous silver and gold films was observed between 500 and 1050 nm, with efficiency much higher near the percolation threshold and with similar spectral dependence for the two metals","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124733789","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}
Elements of quantum-computing networks using adiabatically generated single photons from atom-cavity systems are shown. Higher-order interference, essential for linear-optical quantum computing, is demonstrated, and this effect is also used for entangling individual atoms with light
{"title":"Quantum information processing with single photons from cavity-QED systems","authors":"A. Kuhn","doi":"10.1364/IQEC.2004.IWB1","DOIUrl":"https://doi.org/10.1364/IQEC.2004.IWB1","url":null,"abstract":"Elements of quantum-computing networks using adiabatically generated single photons from atom-cavity systems are shown. Higher-order interference, essential for linear-optical quantum computing, is demonstrated, and this effect is also used for entangling individual atoms with light","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125173650","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}
We observe a sub-30-fs intra-band relaxation in MePTCDI by pump-probe spectroscopy of the excited state absorption. Furthermore, fluorescence and polarization anisotropies are determined to understand energy transfer processes between different molecules
{"title":"Ultrafast relaxation processes in organic molecular crystals of MePTCDI and PTCDA","authors":"M. Koschorreck, E. Engel, K. Leo, M. Hoffmann","doi":"10.1364/IQEC.2004.ITUL2","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITUL2","url":null,"abstract":"We observe a sub-30-fs intra-band relaxation in MePTCDI by pump-probe spectroscopy of the excited state absorption. Furthermore, fluorescence and polarization anisotropies are determined to understand energy transfer processes between different molecules","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125820964","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 : 2004-05-21DOI: 10.1364/IQEC.2004.ITUI22
E. Sarajlic, S. Chu, A. Wicht
We present an analytical and numerical analysis aiming at the precise understanding of the photon-to-atom momentum transfer, which is important e.g. for the analysis of systematic effects in light pulse precision atom interferometry
{"title":"Photon-to-atom momentum transfer in precision atom interferometry","authors":"E. Sarajlic, S. Chu, A. Wicht","doi":"10.1364/IQEC.2004.ITUI22","DOIUrl":"https://doi.org/10.1364/IQEC.2004.ITUI22","url":null,"abstract":"We present an analytical and numerical analysis aiming at the precise understanding of the photon-to-atom momentum transfer, which is important e.g. for the analysis of systematic effects in light pulse precision atom interferometry","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"552 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125913576","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}
J. Barreiro, M. Ericsson, N. Peters, D. Achilles, D. Branning, P. Kwiat
The resilience of geometric phase against errors may enable fault-tolerant quantum computation. We use an interferometric scheme to measure geometric phases of various mixed polarization states generated classically and from conditionally prepared (entangled) single photons
{"title":"Geometric phase for single-photon mixed polarization states","authors":"J. Barreiro, M. Ericsson, N. Peters, D. Achilles, D. Branning, P. Kwiat","doi":"10.1364/IQEC.2004.IMK2","DOIUrl":"https://doi.org/10.1364/IQEC.2004.IMK2","url":null,"abstract":"The resilience of geometric phase against errors may enable fault-tolerant quantum computation. We use an interferometric scheme to measure geometric phases of various mixed polarization states generated classically and from conditionally prepared (entangled) single photons","PeriodicalId":165225,"journal":{"name":"InternationalQuantum Electronics Conference, 2004. (IQEC).","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125302645","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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