Pub Date : 2011-12-15DOI: 10.1109/NLP.2011.6102653
P. Rose, M. Boguslawski, J. Becker, F. Diebel, C. Denz
We demonstrate the optical induction of photonic structures with different complex geometries in a nonlinear photorefractive crystal. Among the discussed lattices, there are members of all four fundamental families of nondiffracting beams. Given these complex photonic entities, we investigate their influence on linear and nonlinear light propagation.
{"title":"Light propagation in complex photonic lattices optically induced in nonlinear media","authors":"P. Rose, M. Boguslawski, J. Becker, F. Diebel, C. Denz","doi":"10.1109/NLP.2011.6102653","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102653","url":null,"abstract":"We demonstrate the optical induction of photonic structures with different complex geometries in a nonlinear photorefractive crystal. Among the discussed lattices, there are members of all four fundamental families of nondiffracting beams. Given these complex photonic entities, we investigate their influence on linear and nonlinear light propagation.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132055270","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102665
Y. Prylepskiy, S. Derevyanko, S. Gredeskul
In the framework of 1D Nonlinear Shrödinger Equation (NSE) we demonstrate how one can control the refractive angle of a fundamental soliton beam passing through an optical lattice, by adjusting either the shape of an individual waveguide or the relative positions of waveguides. Even for a single scatterer its shape has a nontrivial effect on the refraction direction. In the case of shallow modulation we provide an analytical description based of the effect on the soliton perturbation theory. When one considers a lattice of scatterers, there emanates an additional form factor in the radiation density (RD) of emitted waves referring to the wave-soliton beating and interference inside the lattice. We concentrate on the results for two cases: periodic lattice and disordered lattice of scattering shapes.
{"title":"Nonlinear refraction in optical lattices induced by the wave-soliton interference","authors":"Y. Prylepskiy, S. Derevyanko, S. Gredeskul","doi":"10.1109/NLP.2011.6102665","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102665","url":null,"abstract":"In the framework of 1D Nonlinear Shrödinger Equation (NSE) we demonstrate how one can control the refractive angle of a fundamental soliton beam passing through an optical lattice, by adjusting either the shape of an individual waveguide or the relative positions of waveguides. Even for a single scatterer its shape has a nontrivial effect on the refraction direction. In the case of shallow modulation we provide an analytical description based of the effect on the soliton perturbation theory. When one considers a lattice of scatterers, there emanates an additional form factor in the radiation density (RD) of emitted waves referring to the wave-soliton beating and interference inside the lattice. We concentrate on the results for two cases: periodic lattice and disordered lattice of scattering shapes.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115156659","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102673
G. Knyazev, A. P. Sukhorukov
An experimental study of nonlinear interaction of crossed optical beams in an absorbing defocusing medium is preseted. The experiments demonstrate the effects of nonlinear reflection and diffraction of the signal wave on the pump beam.
{"title":"Interaction of optical beams in medium possessing thermal nonlinearity","authors":"G. Knyazev, A. P. Sukhorukov","doi":"10.1109/NLP.2011.6102673","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102673","url":null,"abstract":"An experimental study of nonlinear interaction of crossed optical beams in an absorbing defocusing medium is preseted. The experiments demonstrate the effects of nonlinear reflection and diffraction of the signal wave on the pump beam.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114757631","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102661
V. I. Fesenko, I. Sukhoivanov, S. Shulga, P.A. Tsimkalenko
The model describing excitation and distribution of electromagnetic waves in an anisotropic optical waveguide in the three-dimensional case is presented in this paper. The finite difference method (FDM) has been employed for the Maxwell equation discretization for a random anisotropic medium. The resulting system of linear algebraic equations for the electric-field components in an inhomogeneous anisotropic medium is solved by the method of biconjugate gradient.
{"title":"Analysis of anisotropic optical waveguides using a three-dimensional finite difference method","authors":"V. I. Fesenko, I. Sukhoivanov, S. Shulga, P.A. Tsimkalenko","doi":"10.1109/NLP.2011.6102661","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102661","url":null,"abstract":"The model describing excitation and distribution of electromagnetic waves in an anisotropic optical waveguide in the three-dimensional case is presented in this paper. The finite difference method (FDM) has been employed for the Maxwell equation discretization for a random anisotropic medium. The resulting system of linear algebraic equations for the electric-field components in an inhomogeneous anisotropic medium is solved by the method of biconjugate gradient.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127526581","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102647
V.V. Iaparov, V. Taranenko
We show numerically that active optical cavity with mixed parametric and laser gain can support formation of extended spiral optical domain walls and new type of cavity solitons whose topological structure is similar to that of Néel defect in ferromagnetics and liquid crystals.
{"title":"Spiral optical domain walls and rotating topological solitons in active optical cavity","authors":"V.V. Iaparov, V. Taranenko","doi":"10.1109/NLP.2011.6102647","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102647","url":null,"abstract":"We show numerically that active optical cavity with mixed parametric and laser gain can support formation of extended spiral optical domain walls and new type of cavity solitons whose topological structure is similar to that of Néel defect in ferromagnetics and liquid crystals.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115146142","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102656
T. Pertsch, F. Setzpfandt
We present theoretical and experimental studies on nonlinear beam propagation in lithium niobate waveguide arrays utilizing higher order second harmonic bands. We find that the implementation of the higher order second harmonic bands leads to a number of new effects. The combined interaction of two second harmonic bands with a propagating fundamental beam can lead to a complete inhibition of nonlinear effects or to the formation of discrete spatial solitons, depending only on the wavelength of the fundamental wave. Furthermore we analyze the properties of discrete solitons subjected to linear coupling of the second harmonic. Here we predict and demonstrate experimentally a power dependent phase transition of the soliton topology.
{"title":"Spatial nonlinear effects with higher order modes in LiNbO3 waveguide arrays","authors":"T. Pertsch, F. Setzpfandt","doi":"10.1109/NLP.2011.6102656","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102656","url":null,"abstract":"We present theoretical and experimental studies on nonlinear beam propagation in lithium niobate waveguide arrays utilizing higher order second harmonic bands. We find that the implementation of the higher order second harmonic bands leads to a number of new effects. The combined interaction of two second harmonic bands with a propagating fundamental beam can lead to a complete inhibition of nonlinear effects or to the formation of discrete spatial solitons, depending only on the wavelength of the fundamental wave. Furthermore we analyze the properties of discrete solitons subjected to linear coupling of the second harmonic. Here we predict and demonstrate experimentally a power dependent phase transition of the soliton topology.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129350742","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102663
M. Trejo-Durán, E. Alvarado-Mendez, J. Andrade-Lucio, R. Mata-Chávez, E. Vargas-Rodríguez
We study nonlinear optical properties of 1-buthyl-3-methylimidazolium tetrafluoroborate [BMIM][BF4]), 1-ethyl-3-methylimidazolium Bis((trifluoromethyl)sulfonyl)imide ([EMIM][TF2N]), 1-ethyl-3-methylimidazolium trifluoroacetate ([EMIM][CF3COO]), 1-buthyl-3-ethylimidazoliumtrifluoroacetate ([BMIM][CF3COO]), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) and 1-buthyl-3-methylimidazolium Bis((trifluoromethyl)sulfonyl)imide ([BMIM][TF2N]). We determinated the focal length photo-induced lens using z-scan technique by adjusting the characteristic curves of nonlinear refraction index. This indicated the presence of thermal and electronic effects.
{"title":"Determination of focal length photoinduced lens in ionic liquids","authors":"M. Trejo-Durán, E. Alvarado-Mendez, J. Andrade-Lucio, R. Mata-Chávez, E. Vargas-Rodríguez","doi":"10.1109/NLP.2011.6102663","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102663","url":null,"abstract":"We study nonlinear optical properties of 1-buthyl-3-methylimidazolium tetrafluoroborate [BMIM][BF4]), 1-ethyl-3-methylimidazolium Bis((trifluoromethyl)sulfonyl)imide ([EMIM][TF2N]), 1-ethyl-3-methylimidazolium trifluoroacetate ([EMIM][CF3COO]), 1-buthyl-3-ethylimidazoliumtrifluoroacetate ([BMIM][CF3COO]), 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) and 1-buthyl-3-methylimidazolium Bis((trifluoromethyl)sulfonyl)imide ([BMIM][TF2N]). We determinated the focal length photo-induced lens using z-scan technique by adjusting the characteristic curves of nonlinear refraction index. This indicated the presence of thermal and electronic effects.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129983082","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102668
I. Maksymov, A. Miroshnichenko, Y. Kivshar
We suggest and theoretically study a novel tunable plasmonic Yagi-Uda nanoantenna driven by means of a feed element consisting of two closely spaced metal nanobars separated by a gap filled with a semiconductor. Through extensive numerical simulations we demonstrate that a variation of the free-carrier density in the semiconductor strongly modifies the antenna's response in both near-field and far-field regions, which opens up ways for active all-optical spectral tuning of the nanoantenna.
{"title":"Tunable plasmonic Yagi-Uda nanoantenna","authors":"I. Maksymov, A. Miroshnichenko, Y. Kivshar","doi":"10.1109/NLP.2011.6102668","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102668","url":null,"abstract":"We suggest and theoretically study a novel tunable plasmonic Yagi-Uda nanoantenna driven by means of a feed element consisting of two closely spaced metal nanobars separated by a gap filled with a semiconductor. Through extensive numerical simulations we demonstrate that a variation of the free-carrier density in the semiconductor strongly modifies the antenna's response in both near-field and far-field regions, which opens up ways for active all-optical spectral tuning of the nanoantenna.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122496392","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102672
V. Shandarov, K. Shandarova, P. A. Trenikhin, F. Chen
We experimentally demonstrate formation of nonperiodic photorefractive photonic lattices in lithium niobate using the optical modulation and optical induction procedures based on contact and optical projection schemes with amplitude masks.
{"title":"Non-periodic photorefractive photonic lattices in lithium niobate: Features of their formation and light propagation","authors":"V. Shandarov, K. Shandarova, P. A. Trenikhin, F. Chen","doi":"10.1109/NLP.2011.6102672","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102672","url":null,"abstract":"We experimentally demonstrate formation of nonperiodic photorefractive photonic lattices in lithium niobate using the optical modulation and optical induction procedures based on contact and optical projection schemes with amplitude masks.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131207116","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 : 2011-12-15DOI: 10.1109/NLP.2011.6102670
S. Bugaychuk, R. Conte
The spacial distribution of the amplitude of the dynamical grating has a pattern of a dark dissipative soliton in the case of reflection two-beam coupling in a medium with nonlocal response. The manipulation of the pattern depends on the input intensity ratio. The effect of alteration of the shape of input pulse by means of two-wave mixing is considered.
{"title":"Dark dissipative soliton of nonlinear wave interaction","authors":"S. Bugaychuk, R. Conte","doi":"10.1109/NLP.2011.6102670","DOIUrl":"https://doi.org/10.1109/NLP.2011.6102670","url":null,"abstract":"The spacial distribution of the amplitude of the dynamical grating has a pattern of a dark dissipative soliton in the case of reflection two-beam coupling in a medium with nonlocal response. The manipulation of the pattern depends on the input intensity ratio. The effect of alteration of the shape of input pulse by means of two-wave mixing is considered.","PeriodicalId":347986,"journal":{"name":"2011 International Workshop on Nonlinear Photonics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123695993","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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