7 papers
Germanium-Based Mid-Infrared Photonics
Delphine Marris-Morini, Goran Z. Mashanovich, Milos Nedeljkovic +4
The mid-infrared (mid-IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Ge-based photonic inte…
Brittle-to-ductile transition and strain relaxation in SiGe linearly graded buffers
Riccardo Civiero, Elena Campagna, Afonso Cerdeira Oliveira +5
The strain-relaxation mechanism of a set of SiGe linearly graded buffers (LGBs), grown following different temperature profiles, has been investigated by means of d…
Automated All-RF Tuning for Spin Qubit Readout and Control
Cornelius Carlsson, Jaime Saez-Mollejo, Federico Fedele +5
Efficient tuning of spin qubits remains a major bottleneck in scaling semiconductor quantum dot-based quantum processors. A key challenge is the rapid identification of gate voltag…
On-chip pulse generation at 8 μm wavelength
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler +15
The mid-infrared spectral region holds growing importance for applications such as gas sensing and spectroscopy. Although compact ultrashort pulse laser sources are essential to en…
Strong hole-photon coupling in planar Ge for probing charge degree and strongly-correlated states
Franco De Palma, Fabian Oppliger, Wonjin Jang +7
Semiconductor quantum dots (QDs) in planar germanium (Ge) heterostructures have emerged as front-runners for future hole-based quantum processors. Here, we present strong coupling…
Exchange anisotropies in microwave-driven singlet-triplet qubits
Jaime Saez-Mollejo, Daniel Jirovec, Yona Schell +7
Hole spin qubits are rapidly emerging as the workhorse of semiconducting quantum processors because of their large spin-orbit interaction, enabling fast all-electric operations at…