activity
20232026
most citedNuclear Spin-Depleted, Isotopically Enriched 70Ge/28Si70Ge Quantum Wells

11 citations · 17 across the 8 of their papers we have counts for

collaborators

8 papers

physics.optics2026

Extending Silicon Avalanche Photodetection Beyond m by Direct GeSn Integration

M. R. M. Atalla, J. Bélec, E. Rahier +5

Silicon avalanche photodiodes provide a technologically mature platform for sensitive photodetection, but their spectral response is intrinsically limited by the silicon bandgap. E…

quant-ph2026

Magneto-optical characterization of GeSn and GeSn/SiGeSn heterostructures

Mehdi Ashrafganjoie, Kelvin Dsouza, Prithu Bhatnagar +9

Hole spin qubits in germanium (Ge)-based heterostructures have demonstrated their potential for scalable quantum information processing using all-electrical gate operations. Furthe…

cond-mat.mtrl-sci2025

Nuclear spin-free 70Ge/28Si70Ge quantum well heterostructures grown on industrial SiGe-buffered wafers

P. Daoust, N. Rotaru, D. Biswas +9

The coherence of hole spin qubits in germanium planar heterostructures is limited by the hyperfine coupling to the nuclear spin bath due to 29Si and 73Ge isotopes. Thus, removing t…

cond-mat.mtrl-sci2025

Formation of C-centers in Si-based systems by light ion irradiation

Carolina Crosta, Riccardo Nardin, Patrick Daoust +8

Atomic-scale crystal defects in Si are quantum-light sources offering tantalizing integration with existing photonic technologies. Yet, the controlled creation of near-infrared col…

physics.app-ph2024★ 5 cited

Transfer-printed multiple GeSn membrane mid-infrared photodetectors

Cédric Lemieux-Leduc, Mahmoud R. M. Atalla, Simone Assali +8

Due to their narrow band gap and compatibility with silicon processing, germanium-tin (GeSn) alloys are a versatile platform for scalable integrated mid-infrared photon…

physics.app-ph2024

Extended-SWIR High-Speed All-GeSn PIN Photodetectors on Silicon

Mahmoud R. M. Atalla, Cedric Lemieux-Leduc, Simone Assali +3

There is an increasing need for silicon-compatible high bandwidth extended-short wave infrared (e-SWIR) photodetectors (PDs) to implement cost-effective and scalable optoelectronic…

physics.optics2023★ 1 cited

Continuous-wave GeSn light emitting diodes on silicon with m room-temperature emission

Mahmoud R. M. Atalla, Simone Assali, Gérard Daligou +4

Silicon-compatible short- and mid-wave infrared emitters are highly sought-after for on-chip monolithic integration of electronic and photonic circuits to serve a myriad of applica…

cond-mat.mes-hall2023★ 11 cited

Nuclear Spin-Depleted, Isotopically Enriched 70Ge/28Si70Ge Quantum Wells

O. Moutanabbir, S. Assali, A. Attiaoui +6

The p-symmetry of the hole wavefunction is associated with a weaker hyperfine interaction as compared to electrons, thus making hole spin qubits attractive candidates to implement…