Browsing by Author "Duque, C. A."

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Publication
    Estados excitados de impurezas y propiedades colectivas en heteroestructuras semiconductoras
    (1998) Granada Echeverri, Juan Carlos; Pérez Merchancano, S. T.; Perea, A.; Paredes Gutiérrez, Harold; Cuero Yepes, J. C.; Becerra, G.; Vivas Moreno, José Joaquín; Montes, A.; Duque, C. A.; Morales, A. L.; Villamil, Pablo; Lozano, Julio César; Silva Valencia, Jereson; Oliveira, Luis E.; Latge, Andrea; Dios Leyva, M. de; Reina E., John H.; Calero, J. M.; Universidad del Valle. Facultad de Ciencias. Departamentode Fisica.
  • No Thumbnail Available
    Publication
    Temperature and hydrostatic pressure effects on the photonic band structure of a 2D honeycomb lattice
    (2010-02) Porras Montenegro, Nelson; Duque, C. A.
    A standard plane-wave expansion method is used to investigate temperature and applied hydrostatic pressure dependence of the photonic band structure of a two-dimensional honeycomb lattice composed by cylindrical rods of GaAs, embedded in air. Present results suggest that for H-polarization an increment of hydrostatic pressure and temperature not only shifts the photonic band gaps, but diminish the energy width of the second and upper band gaps, while for E-polarization the first band gap is shifted to higher energies, without modifying the width of the other band-gaps, consequently modifying the tunability of this system.