42 citations · 130 across the 6 of their papers we have counts for
6 papers
Level spacing statistics for light in two-dimensional disordered photonic crystals
Jose M. Escalante, Sergey E. Skipetrov
We study the distribution of eigenfrequency spacings (the so-called level spacing statistics) for light in a two-dimensional (2D) disordered photonic crystal composed of circular d…
Longitudinal optical fields in light scattering from dielectric spheres and Anderson localization of light
Jose M. Escalante, Sergey E. Skipetrov
Recent research has shown that coupling between point scatterers in a disordered medium by longitudinal electromagnetic fields is harmful for Anderson localization of light. Howeve…
Germanium under high tensile stress: nonlinear dependence of direct band gap vs. strain
K. Guilloy, N. Pauc, A. Gassenq +15
Germanium is a strong candidate as a laser source for silicon photonics. It is widely accepted that the band structure of germanium can be altered by tensile strain so as to reduce…
Accurate strain measurements in highly strained Ge microbridges
A. Gassenq, S. Tardif, K. Guilloy +16
Ge under high strain is predicted to become a direct bandgap semiconductor. Very large deformations can be introduced using microbridge devices. However, at the microscale, strain…
Uniaxially stressed germanium with fundamental direct band gap
R. Geiger, T. Zabel, E. Marin +17
We demonstrate the crossover from indirect- to direct band gap in tensile-strained germanium by temperature-dependent photoluminescence. The samples are strained microbridges that…
Effect of loss on the dispersion relation of photonic and phononic crystals
Vincent Laude, Jose Maria Escalante, Alejandro Martinez
A theoretical analysis is made of the transformation of the dispersion relation of waves in artificial crystals under the influence of loss, including the case of photonic and phon…