51 citations · 91 across the 8 of their papers we have counts for
8 papers
Magneto-optical Properties of Reduced Titania Probed by First-principles Calculations: Polarons
C. Echeverria-Arrondo, H. Raebiger, J. Perez-Conde +2
The magneto-optical properties of titanium dioxide systems are related to the presence of impurity states in the band gap due to oxygen vacancies. To understand about the interplay…
Shear based gap control in 2D photonic quasicrystals of dielectric cylinders
Angel Andueza, Joaquin Sevilla, Jesus Perez-Conde +1
2D dielectric photonic quasicrystals can be designed to show isotropic band gaps. The system here studied is a quasiperiodic lattice made of silicon dielectric cylinders arranged a…
Strong angular dependence of resonant states in 2D photonic molecules
Angel Andueza, Jesus Perez-Conde, Joaquin Sevilla
Photonic Molecules made of dielectric cylinders assembled as two-dimensional octagons and decagons have been studied. These structures exhibit resonance states that change their in…
Optimal width of quasi-crystalline slabs of dielectric cylinders to light transmission contrast
Angel Andueza, Kang Wang, Jesus Perez-Conde +1
Light confinement induced by resonant states in aperiodic photonic structures are interesting for many applications. A particular case of these resonances can be found in 2D quasi-…
Differential Refractive index sensor based on Photonic molecules and defect cavities
Angel Andueza, Jesus Perez-Conde, Joaquin Sevilla
We present a novel differential refractive index sensor based on arrays of photonic molecules (PM) of dielectric cylinders and two structural defect cavities. The transmission spec…
CdS/HgS/CdS Quantum Dot Quantum Wells: A Tight-binding Study
J. Perez-Conde, A. K. Bhattacharjee
We study the electronic properties of spherical quantum dot quantum well nanocrystals within a symmetry-based tight-binding model. In particular, the influence of a concentric mono…
Photoluminescence Stokes shift and exciton fine structure in CdTe nanocrystals
J. Perez-Conde, A. K. Bhattacharjee, M. Chamarro +3
The photoluminescence spectra of spherical CdTe nanocrystals with zincblende structure are studied by size-selective spectroscopic techniques. We observe a resonant Stokes shift of…
The Kondo-Hubbard model at half-filling
J. Perez-Conde, F. Bouis, P. Pfeuty
We have analyzed the antiferromagnetic (J>0) Kondo-Hubbard lattice with the band at half-filling by means of a perturbative approach in the strong coupling limit, the small paramet…