14 citations · 16 across the 19 of their papers we have counts for
8 papers · 1 filter
Self-aligned photonic defect microcavities with site-controlled quantum dots
C. -W. Shih, I. Limame, C. C. Palekar +4
Despite the superiority in quantum properties, self-assembled semiconductor quantum dots face challenges in terms of scalable device integration because of their random growth posi…
High-quality single InGaAs/GaAs quantum dot growth on a CMOS-compatible silicon substrate for quantum photonic applications
Imad Limame, Peter Ludewig, Ching-Wen Shih +4
We present the direct heteroepitaxial growth of high-quality InGaAs quantum dots on silicon, enabling scalable, cost-effective quantum photonics devices compatible with CMOS techno…
Epitaxial growth and characterization of multi-layer site-controlled InGaAs quantum dots based on the buried stressor method
Imad Limame, Ching-Wen Shih, Alexej Koltchanov +8
We report on the epitaxial growth, theoretical modeling, and structural as well as optical investigation of multi-layer, site-controlled quantum dots fabricated using the buried st…
Twist Angle Dependence of Exciton Resonances in WSe/MoSe Moiré Heterostructures
Chirag Chandrakant Palekar, Joakim Hagel, Barbara Rosa +7
Van der Waals heterostructures based on TMDC semiconducting materials have emerged as promising materials due to their spin-valley properties efficiently contrived by the stacking-…
High- lasing in photonic-defect semiconductor-dielectric hybrid microresonators with embedded InGaAs quantum dots
Kartik Gaur, Ching-Wen Shih, Imad Limame +6
We report an easy-to-fabricate microcavity design to produce optically pumped high- quantum dot microlasers. Our cavity concept is based on a buried photonic-defect for tight la…
Temperature dependent temporal coherence of metallic-nanoparticle-induced single-photon emitters in a WSe monolayer
Martin von Helversen, Lara Greten, Imad Limame +7
In recent years, much research has been undertaken to investigate the suitability of two-dimensional materials to act as single-photon sources with high optical and quantum optical…
Optical characteristics of cavity structures with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors and In0.37Ga0.63As quantum dots as the active region
Bartosz Kamiński, Agata Zielińska, Anna Musiał +5
We characterized optically In0.37Ga0.63As/GaAs quantum dots and Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflector based cavities. The main mechanisms of quantum dots photolumin…
Low-threshold lasing of optically pumped micropillar lasers with AlGaAs/AlGaAs distributed Bragg reflectors
Ching-Wen Shih, Imad Limame, Sebastian Krüger +4
We report on the design, realization and characterization of optically pumped micropillar lasers with low-absorbing AlGaAs/AlGaAs dielectric Bragg r…