Pub Date : 2003-06-06DOI: 10.1109/QELS.2003.238320
P. Palinginis, H. Wang, M. Dobrowolska, J. Furdyna
High-resolution spectral hole burning studies in self-assembled CdSe/ZnSe quantum dots reveal a sharp zero-phonon line as well as contributions due to acoustic phonon- and optical phonon-assisted transitions. Zero-phonon linewidth of a few /spl mu/eV is obtained.
{"title":"Zero-phonon linewidth in self-assembled CdSe quantum dots","authors":"P. Palinginis, H. Wang, M. Dobrowolska, J. Furdyna","doi":"10.1109/QELS.2003.238320","DOIUrl":"https://doi.org/10.1109/QELS.2003.238320","url":null,"abstract":"High-resolution spectral hole burning studies in self-assembled CdSe/ZnSe quantum dots reveal a sharp zero-phonon line as well as contributions due to acoustic phonon- and optical phonon-assisted transitions. Zero-phonon linewidth of a few /spl mu/eV is obtained.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"20 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":"74031472","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.2003.238394
D. Ouzounov, F. Ahmad, A. Gaeta, D. Muller, N. Venkataraman, M. Gallagher, K. Koch
We generate femtosecond, non-frequency shifted solitons with peak powers greater than 5 MW in a Xe-filled, hollow-core photonic band-gap fiber. This represents, to our knowledge, the first observation of temporal solitons with no self-frequency shift.
{"title":"Generation of high-power, non-frequency shifted solitons in a gas-filled photonic band-gap fiber","authors":"D. Ouzounov, F. Ahmad, A. Gaeta, D. Muller, N. Venkataraman, M. Gallagher, K. Koch","doi":"10.1109/QELS.2003.238394","DOIUrl":"https://doi.org/10.1109/QELS.2003.238394","url":null,"abstract":"We generate femtosecond, non-frequency shifted solitons with peak powers greater than 5 MW in a Xe-filled, hollow-core photonic band-gap fiber. This represents, to our knowledge, the first observation of temporal solitons with no self-frequency shift.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"71 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":"74125662","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.2003.238169
T. Pertsch, U. Peschel, S. Nolte, A. Tunnermann, F. Lederer, J. Kobelke, K. Schuster, H. Bartelt
We experimentally observe diffusive wave propagation in disordered two-dimensional arrays of interacting optical fibers. A weak Kerr nonlinearity can cause an increased mobility, where strong nonlinearity leads to the formation of discrete solitons.
{"title":"Nonlinearity and disorder in two-dimensional fiber arrays","authors":"T. Pertsch, U. Peschel, S. Nolte, A. Tunnermann, F. Lederer, J. Kobelke, K. Schuster, H. Bartelt","doi":"10.1109/QELS.2003.238169","DOIUrl":"https://doi.org/10.1109/QELS.2003.238169","url":null,"abstract":"We experimentally observe diffusive wave propagation in disordered two-dimensional arrays of interacting optical fibers. A weak Kerr nonlinearity can cause an increased mobility, where strong nonlinearity leads to the formation of discrete solitons.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"43 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":"75450533","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.2003.237950
J. Prineas, J. Kuhl, J.Y. Zhou, H. Gibbs, G. Khitrova, A. Knorr, S. Koch
Resonant photonic bandgap structures, formed by Bragg-spaced quantum wells, are studied experimentally with resonant pump-probe spectroscopy. We find ultrafast suppression due to the ac Stark effect and ultrafast recovery enabled by superradiant decay of the coherent polarization.
{"title":"Ultrafast suppression and recovery of a resonant photonic bandgap","authors":"J. Prineas, J. Kuhl, J.Y. Zhou, H. Gibbs, G. Khitrova, A. Knorr, S. Koch","doi":"10.1109/QELS.2003.237950","DOIUrl":"https://doi.org/10.1109/QELS.2003.237950","url":null,"abstract":"Resonant photonic bandgap structures, formed by Bragg-spaced quantum wells, are studied experimentally with resonant pump-probe spectroscopy. We find ultrafast suppression due to the ac Stark effect and ultrafast recovery enabled by superradiant decay of the coherent polarization.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"38 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":"73949676","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.2003.238156
B. Shan, Chun Wang, Z. Chang
The near cutoff behaviors of high-order harmonic generation (HHG) from molecular gases is investigated. Results reveal that harmonic cutoff is extended only for molecules that show ionization suppression. Another interesting result is that the HHG intensity drops slower in N/sub 2/ and O/sub 2/, while in Ar there is a sharp drop at the cutoff. This phenomena could be induced by the molecule orientation in the laser field.
{"title":"Near cutoff behaviors of high-order harmonic generation from molecular gases","authors":"B. Shan, Chun Wang, Z. Chang","doi":"10.1109/QELS.2003.238156","DOIUrl":"https://doi.org/10.1109/QELS.2003.238156","url":null,"abstract":"The near cutoff behaviors of high-order harmonic generation (HHG) from molecular gases is investigated. Results reveal that harmonic cutoff is extended only for molecules that show ionization suppression. Another interesting result is that the HHG intensity drops slower in N/sub 2/ and O/sub 2/, while in Ar there is a sharp drop at the cutoff. This phenomena could be induced by the molecule orientation in the laser field.","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":"78727412","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.2003.238039
Yoon-Ho Kim, W. Grice, S. Kulik, M. Chekhova, Y. Shih
We report an entanglement extraction scheme in which polarization-entangled photons are generated in ultrafast type-II SPDC without the need for spectral filters. High-quality polarization entanglement is possible, regardless of pump pulse duration or crystal thickness.
{"title":"Efficient extraction of polarization-entanglement in ultrafast type-II SPDC","authors":"Yoon-Ho Kim, W. Grice, S. Kulik, M. Chekhova, Y. Shih","doi":"10.1109/QELS.2003.238039","DOIUrl":"https://doi.org/10.1109/QELS.2003.238039","url":null,"abstract":"We report an entanglement extraction scheme in which polarization-entangled photons are generated in ultrafast type-II SPDC without the need for spectral filters. High-quality polarization entanglement is possible, regardless of pump pulse duration or crystal thickness.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"53 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":"78174215","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.2003.238110
W. Liu, S. Chin
We focused a 38 fs laser pulse, which is spatially filtered, into a glass cell containing a very dilute solution of coumarin 440 in methanol. Via three photons fluorescence of coumarin, up to 6 re-focusing filaments were observed along one straight line. This is the first evidence showing a way to control multiple filamentation.
{"title":"Multiple re-focusing of ultrashort laser pulse propagating in condensed matter","authors":"W. Liu, S. Chin","doi":"10.1109/QELS.2003.238110","DOIUrl":"https://doi.org/10.1109/QELS.2003.238110","url":null,"abstract":"We focused a 38 fs laser pulse, which is spatially filtered, into a glass cell containing a very dilute solution of coumarin 440 in methanol. Via three photons fluorescence of coumarin, up to 6 re-focusing filaments were observed along one straight line. This is the first evidence showing a way to control multiple filamentation.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"18 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":"80491932","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.2003.238635
D. Tricca, C. Sibilia, S. Severini, G. D’Aguanno, M. Bertolotti, K. Sakoda
Quadrature-amplitude and phase squeezing are investigated in a nonlinear planar waveguide geometry under conditions for which the use of a linear grating fabricated on top of the waveguide reproduces a photonic band gap structures.
{"title":"Photonic band gap structures in planar nonlinear waveguides: application to squeezing light generation","authors":"D. Tricca, C. Sibilia, S. Severini, G. D’Aguanno, M. Bertolotti, K. Sakoda","doi":"10.1109/QELS.2003.238635","DOIUrl":"https://doi.org/10.1109/QELS.2003.238635","url":null,"abstract":"Quadrature-amplitude and phase squeezing are investigated in a nonlinear planar waveguide geometry under conditions for which the use of a linear grating fabricated on top of the waveguide reproduces a photonic band gap structures.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"29 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":"84886538","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.2003.238282
G. D’Aguanno, M. Centini, M. Scalora, Concita Sibilid, Mario Bertolotti, Eugenio Fazio, Charles M. Bowden, M. Bloemer
A study of parametric down-conversion in photonic crystals reveals that the probe field can be slowed down to 11 m/s: i.e. a tunneling velocity previously reported only for coherently resonant interactions in Bose-Einstein condensates.
{"title":"Trapping and storing light in /spl chi//sup (2)/ photonic crystals","authors":"G. D’Aguanno, M. Centini, M. Scalora, Concita Sibilid, Mario Bertolotti, Eugenio Fazio, Charles M. Bowden, M. Bloemer","doi":"10.1109/QELS.2003.238282","DOIUrl":"https://doi.org/10.1109/QELS.2003.238282","url":null,"abstract":"A study of parametric down-conversion in photonic crystals reveals that the probe field can be slowed down to 11 m/s: i.e. a tunneling velocity previously reported only for coherently resonant interactions in Bose-Einstein condensates.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"17 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":"77236569","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.2003.237802
M. Wilcox, J. Nees, B. Hou, W. Theobald, G. Mourou
Harmonic generation mechanisms are studied in the ultrafast (22 fs), relativistic regime (I/spl lambda//sup 2//spl sim/10/sup 18/ W/cm/sup 2/). Analysis of the polarization and intensity dependence of the harmonics illustrates different mechanisms of harmonic production for odd and even harmonics.
{"title":"Polarization and power scaling of harmonics from solid and targets in the /spl lambda//sup 3/-regime","authors":"M. Wilcox, J. Nees, B. Hou, W. Theobald, G. Mourou","doi":"10.1109/QELS.2003.237802","DOIUrl":"https://doi.org/10.1109/QELS.2003.237802","url":null,"abstract":"Harmonic generation mechanisms are studied in the ultrafast (22 fs), relativistic regime (I/spl lambda//sup 2//spl sim/10/sup 18/ W/cm/sup 2/). Analysis of the polarization and intensity dependence of the harmonics illustrates different mechanisms of harmonic production for odd and even harmonics.","PeriodicalId":20418,"journal":{"name":"Postconference Digest Quantum Electronics and Laser Science, 2003. QELS.","volume":"36 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":"81084421","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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