Exploració per autor "Mukherjee, Samyobrata"Més informació

Ara es mostren els items 1-7 de 7

    • Angular control of anisotropy-induced bound states in the continuum 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (2019-11-01)
      Article
      Accés obert
      Radiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded ...

    • Bound states in the continuum in planar anisotropic structures 

      Mukherjee, Samyobrata (Universitat Politècnica de Catalunya, 2021-10-05)
      Tesi
      Accés obert
      Bound states in the continuum (BICs) are modes that remain radiationless though they exist in the part of the spectrum that corresponds to radiating waves. They are a general wave phenomenon and following initial theoretical ...

    • Existence loci of bound states in the continuum in the parameter space of anisotropic planar structures 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (Optical Society of American (OSA), 2019)
      Comunicació de congrés
      Accés obert
      Bound states in the continuum (BICs), first predicted in the field of quantum physics [1], are localized radiationless states existing in the part of the spectrum that corresponds to radiative modes. BICs are a general ...

    • Slow light mediated by mode topological transitions in hyperbolic waveguides 

      Pujol Closa, Maria del Pilar; Gomis Bresco, Jordi; Mukherjee, Samyobrata; Gómez Díaz, J. Sebastián; Torner Sabata, Lluís; Artigas García, David (2021-01-01)
      Article
      Accés obert
      We show that slow light in hyperbolic waveguides is linked to topological transitions in the dispersion diagram as the film thickness changes. The effect appears in symmetric planar structures with type II films, whose ...

    • Topological properties of bound states in the continuum in geometries with broken anisotropy symmetry 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (2018-12-18)
      Article
      Accés obert
      Waveguiding structures made of anisotropic media support bound states in the continuum (BICs) that arise when the radiation channel of otherwise semileaky modes is suppressed. Hitherto, only structures with optical axes ...

    • Topology Transitions of Anisotropy Induced Bound States in the Continuum 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (2018)
      Text en actes de congrés
      Accés obert
      We demonstrate that Bound states In the Continuum (BICs) are supported in planar anisotropic structures where the optic axes are arbitrarily oriented. Moreover, we reveal fundamental new topological properties of these ...

    • Unidirectional guided resonances in anisotropic waveguides 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Artigas García, David; Torner Sabata, Lluís (2021-05-15)
      Article
      Accés obert
      We show that anisotropic planar anti-guiding waveguide structures with two radiation channels toward the surrounding cladding materials can support unidirectional guided resonances (UGRs), where radiation is canceled in ...