Pub Date : 1996-01-01DOI: 10.1109/EQEC.1996.561714
R. Pons, J. Farjas, R. Herrero, F. Pi, G. Orriols
{"title":"Four Dimensional Nonlinear Dynamics in Optical Devices","authors":"R. Pons, J. Farjas, R. Herrero, F. Pi, G. Orriols","doi":"10.1109/EQEC.1996.561714","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561714","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84791565","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561570
G. D. de Valcárcel, E. Roldán, V.J. Sanchez Morcillo, K. Staliūnas
Transverse pattern formation in dcgenerate optical parametric oscillation (DOPO) is a subject of' present interest [ I ] . In this work we carry out an analytical study of pattern formation i n DOPO and degenerate lour-wave mixing (DFWM), which is complemented by numerical integration of the microscopic cquations of both systems. In the limit of small pump and signal detunings both systems are described by the real SwiftHohenberg equation (SHE). This broadens the range of similarities existing between DOPO and DFWM, which comprise both temporal instabilities and quantum properties. On the other hand the derivation of the SHE gives support io the already observed leading role of rolls in DOPO 111. l'he predictions about the stability of these patterns given by the SHE are in good agreement with numerical simulations. Moreover. i t has been recently shown that the SHE contains stable hexagons with an additional zero-mode [ 2 ] . which have been also found by numerical simulation. Contrarily, for small signal and large pump detunings the SHE is modified by the appearance of additional nonlinear tenns, which signals the existence of a nonlinear resonance (NLR). These additional ternis are however different iii DOPO and DFWM, limiting the similarities existing between both systems.
{"title":"Transverse Patterns in Degenerate Optical-Parametric Oscillation and Degenerat Four-wave Mixing","authors":"G. D. de Valcárcel, E. Roldán, V.J. Sanchez Morcillo, K. Staliūnas","doi":"10.1109/EQEC.1996.561570","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561570","url":null,"abstract":"Transverse pattern formation in dcgenerate optical parametric oscillation (DOPO) is a subject of' present interest [ I ] . In this work we carry out an analytical study of pattern formation i n DOPO and degenerate lour-wave mixing (DFWM), which is complemented by numerical integration of the microscopic cquations of both systems. In the limit of small pump and signal detunings both systems are described by the real SwiftHohenberg equation (SHE). This broadens the range of similarities existing between DOPO and DFWM, which comprise both temporal instabilities and quantum properties. On the other hand the derivation of the SHE gives support io the already observed leading role of rolls in DOPO 111. l'he predictions about the stability of these patterns given by the SHE are in good agreement with numerical simulations. Moreover. i t has been recently shown that the SHE contains stable hexagons with an additional zero-mode [ 2 ] . which have been also found by numerical simulation. Contrarily, for small signal and large pump detunings the SHE is modified by the appearance of additional nonlinear tenns, which signals the existence of a nonlinear resonance (NLR). These additional ternis are however different iii DOPO and DFWM, limiting the similarities existing between both systems.","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84948790","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561675
W. Ubachs
Narrowband Nd-YAG pumped and frequency-doubled dye lasers with outputs in the extreme ultraviolet domain were used in spectroscopic experiments. The studies include: determination of the lifetimes of highly excited states in CO and N2 and their predissociation rates; investigation of highly excited gerade Rydberg states of molecular hydrogen; determination of the transition frequency of the 1s21S-1s2p 1P resonance line of atomic helium; the accurate determination of the Lamb shift in the ground state of helium. Harmonic generation is applied to the laser output to generate coherent XUV radiation. Continuous tunability in the range 54-100 nm was established. Nearly Fourier-transform limited pulses were produced by a pulsed-dye-amplifier.
{"title":"Laser Spectroscopy in the XUV","authors":"W. Ubachs","doi":"10.1109/EQEC.1996.561675","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561675","url":null,"abstract":"Narrowband Nd-YAG pumped and frequency-doubled dye lasers with outputs in the extreme ultraviolet domain were used in spectroscopic experiments. The studies include: determination of the lifetimes of highly excited states in CO and N2 and their predissociation rates; investigation of highly excited gerade Rydberg states of molecular hydrogen; determination of the transition frequency of the 1s21S-1s2p 1P resonance line of atomic helium; the accurate determination of the Lamb shift in the ground state of helium. Harmonic generation is applied to the laser output to generate coherent XUV radiation. Continuous tunability in the range 54-100 nm was established. Nearly Fourier-transform limited pulses were produced by a pulsed-dye-amplifier.","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85073259","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561892
S. De SiIvestri, M. Nisoli, G. Lanzani, W. Graupner, G. Leising
{"title":"Ultrafast Spectroscopy in Ordered Molecular Films: Evidence for Excitons and Polaron-Pairs Photoexcitations","authors":"S. De SiIvestri, M. Nisoli, G. Lanzani, W. Graupner, G. Leising","doi":"10.1109/EQEC.1996.561892","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561892","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82197563","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561668
A. Molisch, B.P. Ochry, W. Schupita, G. Magerl
{"title":"Optimization of Mercury-Vapor Lasers","authors":"A. Molisch, B.P. Ochry, W. Schupita, G. Magerl","doi":"10.1109/EQEC.1996.561668","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561668","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85133465","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561757
O. Antipov, S. I. Belyaev, A.S. Kuzchev
{"title":"Stimulated Resonance Scattering of the Light Beam In the Laser Crystal Nd:YAG with Population Inversion","authors":"O. Antipov, S. I. Belyaev, A.S. Kuzchev","doi":"10.1109/EQEC.1996.561757","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561757","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81825737","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561800
W. A. van der Graaf, P. D. De Jagher, D. Lenstra
{"title":"Relaxation Oscillation Dynamics and Bifurcations in an Optically Injected Semiconductor Laser","authors":"W. A. van der Graaf, P. D. De Jagher, D. Lenstra","doi":"10.1109/EQEC.1996.561800","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561800","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82289158","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 : 1996-01-01DOI: 10.1109/EQEC.1996.561531
G. Mauzke, U. Moldzio, K. Henneberger
{"title":"Strong Dephasing in a Laser Excited Semiconductor Due to Carrier-Plasmon Scattering","authors":"G. Mauzke, U. Moldzio, K. Henneberger","doi":"10.1109/EQEC.1996.561531","DOIUrl":"https://doi.org/10.1109/EQEC.1996.561531","url":null,"abstract":"","PeriodicalId":11780,"journal":{"name":"EQEC'96. 1996 European Quantum Electronic Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80601597","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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