Ian Colombo
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View article: Formation of C-centers in Si-based systems by light ion irradiation
Formation of C-centers in Si-based systems by light ion irradiation Open
Atomic-scale crystal defects in Si are quantum-light sources offering tantalizing integration with existing photonic technologies. Yet, the controlled creation of near-infrared color centers for long- haul quantum communication and informa…
View article: THz higher-order topological photonics in Ge-on-Si heterostructures
THz higher-order topological photonics in Ge-on-Si heterostructures Open
We design germanium-based higher-order topological cavities for terahertz applications by breaking the symmetry of a two-dimensional photonic crystal following the Su-Schrieffer-Heeger model. Calculations demonstrate the parity inversion o…
View article: 3D finite-element modeling of topological photonics in germanium
3D finite-element modeling of topological photonics in germanium Open
We investigated the photonic properties of topological lattices specifically designed to open a terahertz photonic bandgap in a germanium matrix. An extensive analysis based on three-dimensional finite element method enabled the identifica…
View article: THz Higher-Order Topological Photonics in Ge-on-Si Heterostructures
THz Higher-Order Topological Photonics in Ge-on-Si Heterostructures Open
We design germanium-based higher-order topological cavities for terahertz applications by breaking the symmetry of a two-dimensional photonic crystal following the Su-Schrieffer-Heeger model. Calculations demonstrate the parity inversion o…