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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238619
J. Lundeen, K. Resch, A. Steinberg
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237942
J. Franson, M. Donegan, M. J. Fitch, B. Jacobs, T. Pittman
We describe a high-fidelity approach to linear optics quantum computing in which the quantum logic operations always produce an output. A method for generating the required entangled states is also described.
{"title":"High-fidelity quantum logic operations and entangled ancilla states","authors":"J. Franson, M. Donegan, M. J. Fitch, B. Jacobs, T. Pittman","doi":"10.1109/QELS.2003.237942","DOIUrl":"https://doi.org/10.1109/QELS.2003.237942","url":null,"abstract":"We describe a high-fidelity approach to linear optics quantum computing in which the quantum logic operations always produce an output. A method for generating the required entangled states is also described.","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":"84039307","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.2003.237865
D. Wiersma, R. Sapienza, S. Gottardo, S. Cavalieri, S. Mujumdar, F. Aliev
We will discuss the transport of optical waves in complex photonic systems. In particular we will go into the possibilities of tuning complex optical devices via liquid crystal infiltration. Tuning of ordered systems like photonic bandgap crystals is being exploited in various ways. We will discuss the possibilities that disordered dielectrics offer. As a special example we will discuss the tunable random laser.
{"title":"Complex photonic systems with external control: from optical NTC resistance to tunable random laser action","authors":"D. Wiersma, R. Sapienza, S. Gottardo, S. Cavalieri, S. Mujumdar, F. Aliev","doi":"10.1109/QELS.2003.237865","DOIUrl":"https://doi.org/10.1109/QELS.2003.237865","url":null,"abstract":"We will discuss the transport of optical waves in complex photonic systems. In particular we will go into the possibilities of tuning complex optical devices via liquid crystal infiltration. Tuning of ordered systems like photonic bandgap crystals is being exploited in various ways. We will discuss the possibilities that disordered dielectrics offer. As a special example we will discuss the tunable random laser.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"15 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":"86855413","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.2003.238634
D. Janner, S. Longhi, M. Marano, P. Laporta
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.
{"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}
Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.237915
H. Schomig, S. Halm, G. Bacher, A. Forchel, A. A. Maksimov, P. Dorozhkin, V. Kulakovskii, M. Dobrowolska, J. Furdyna
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.
{"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}
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.2003.238107
D. Hutchings
Considering the symmetry of the third-order susceptibility tensor elements for semiconductor heterostructures results in 8 independent elements for [001] growth. Nonlinear refraction coefficients are derived and the change in dimensionality with intermixing is discussed.
{"title":"Theory of ultrafast nonlinear refraction in semiconductor heterostructure waveguides","authors":"D. Hutchings","doi":"10.1109/QELS.2003.238107","DOIUrl":"https://doi.org/10.1109/QELS.2003.238107","url":null,"abstract":"Considering the symmetry of the third-order susceptibility tensor elements for semiconductor heterostructures results in 8 independent elements for [001] growth. Nonlinear refraction coefficients are derived and the change in dimensionality with intermixing is discussed.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"7 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":"84207867","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.2003.238118
S. Volz, K. Joulain, J. Mulet, R. Carminati, J. Greffet
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.
{"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：