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Omnidirectional photonic band gaps in one-dimensional gradient refractive index photonic crystals considering linear and quadratic profiles
(Elsevier, 2021-12)
By using the transfer matrix formalism, in this work it is presented the study of the optical properties of 1D photonic structures constructed with M periods of bilayers of dielectric material and slabs with gradient ...
Photonic properties of pzt powders along the crystallization process of the polymeric precursor
(2018-01-01)
Lead zirconate titanate (PZT) is a wide versatile material applied in several electronic devices. Some of dielectric and piezoelectric characteristics depend on phase formation, crystallization and composition. In this ...
Design of diblock co-oligomers as low bandgap small molecules for organic solar cells
(2017-12-12)
The properties of a particular kind of small molecule that is built from two oligomers of different monomers, i.e. a diblock co-oligomer, as the electron donor in the active layer of organic solar cells are investigated ...
Photonic band structure evolution of a honeycomb lattice in the presence of an external magnetic field
(Amer Inst PhysicsMelvilleEUA, 2009)
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides
(Taylor & Francis Ltd, 2009-09)
We have analyzed electromagnetic wave propagation in photonic bandgap (PBG) structures comprising alternating layers of isotropic dielectric-magnetic materials with positive phase velocity and negative phase velocity, ...
Broadband NIR emission in novel sol-gel Er3+-doped SiO 2-Nb2O5 glass ceramic planar waveguides for photonic applications
(2013-01-01)
This paper reports on the sol-gel preparation and structural and optical characterization of new Er3+-doped SiO2-Nb 2O5 nanocomposite planar waveguides. Erbium-doped (100-x)SiO2-xNb2O5 waveguides were deposited on ...