Browsing by Author "2c07814a-664c-40fd-831b-99c0d5949e0c"

Now showing items 1-12 of 12

    • All-optical switching and amplification of discrete vector solitons in nonlinear cubic birefringent waveguide ... 
      Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Kivshar, Yuri S. (2004)
      We study all-optical switching based on the dynamic properties of discrete vector solitons in waveguide arrays. We employ the concept of polarization mode instability and demonstrate simultaneous switching and amplification ...
    • Controlled switching of discrete solitons in waveguide arrays 
      Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Kivshar, Yuri S. (Optical Society of America (OSA), 2003)
      A study was performed on controlled switching of discrete solitons in waveguide arrays. The study involved weak steplike modulation of the coupling strength in the array with the period larger than the waveguide spacing. ...
    • Disorder-free weak dynamic localization in deformable lattices 
      Savin, Alexander V.; Kivshar, Yuri S.; Molina Gálvez, Mario (Institute of Physics Publishing, 2018)
      © 2018 IOP Publishing Ltd.We study the electron transport in a deformable lattice modeled in the semiclassical approximation as a discrete nonlinear elastic chain where acoustic phonons are in thermal equilibrium at ...
    • Fano resonance in quadratic waveguide arrays 
      Miroshnichenko, Andrey E.; Kivshar, Yuri S.; Vicencio Poblete, Rodrigo; Molina Gálvez, Mario (2005)
      We study resonant light scattering in arrays of channel optical waveguides in which tunable quadratic non-linearity is introduced as nonlinear defects by periodic poling of single (or several) waveguides in the array. We ...
    • Interface solitons in quadratic nonlinear photonic lattices 
      Xu, Zhiyong; Molina Gálvez, Mario; Kivshar, Yuri S. (2009)
      We study the properties of two-color nonlinear localized modes which may exist at the interfaces separating two different periodic photonic lattices in quadratic media, focusing on the impact of phase mismatch of the ...
    • Nonlinear localized modes at phase slips in two-dimensional photonic lattices 
      Molina Gálvez, Mario; Kivshar, Yuri S. (2009)
      We analyze the existence and stability of nonlinear modes localized at phase-slip waveguide channels and their intersections in two-dimensional photonic lattices with rectangular symmetry. While in linear lattices only one ...
    • Polarization instability, steering, and switching of discrete vector solitons 
      Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Kivshar, Yuri S. (2005)
      We study the dynamics of discrete vector solitons in arrays of weakly coupled birefringent optical waveguides with cubic nonlinear response. We start with a modulational instability analysis, followed by approximate ...
    • Surface multi-gap vector solitons 
      Garanovich, Ivan L.; Sukhorukov, Andrey A.; Kivshar, Yuri S.; Molina Gálvez, Mario (Optical Society of American (OSA), 2006)
      We analyze nonlinear collective effects near surfaces of semiinfinite periodic systems with multi-gap transmission spectra and introduce a novel concept of multi-gap surface solitons as mutually trapped surface states with ...
    • Surface solitons in chirped photonic lattices 
      Molina Gálvez, Mario; Kartashov, Yaroslav V.; Torner, Lluis; Kivshar, Yuri S. (2007)
      We study surface modes at the edge of a semi-infinite chirped photonic lattice in the framework of an effective discrete nonlinear model. We demonstrate that the lattice chirp can change dramatically the conditions for the ...
    • Switching of discrete optical solitons in engineered waveguide arrays 
      Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Kivshar, Yuri S. (2004)
      An effective method for controlling nonlinear switching of discrete solitons in arrays of weakly coupled optical waveguides was discussed. The key ideas of the array engineering by means of a steplike variation of the ...
    • Topology-driven nonlinear switching in Möbius discrete arrays 
      Muñoz, Francisco J.; Turitsyn, Sergei K.; Kivshar, Yuri S.; Molina Gálvez, Mario (American Physical Society, 2017)
      © 2017 American Physical Society.We examine the switching dynamics of discrete solitons propagating along two coupled discrete arrays which are twisted to form a Möbius strip. We analyze the potential of the topological ...
    • Two-color discrete localized modes and resonant scattering in arrays of nonlinear quadratic optical waveguides 
      Molina Gálvez, Mario; Vicencio Poblete, Rodrigo; Kivshar, Yuri S. (2005)
      We analyze the properties and stability of two-color discrete localized modes in arrays of channel waveguides where tunable quadratic nonlinearity is introduced as a nonlinear defect by periodic poling of a single waveguide ...