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Mameli, A. (author), Fawzy, A. (author), Roozeboom, F. (author), Poodt, P.W.G. (author)
The present disclosure concerns an atomie layer deposition device for area-selective deposition of a target material layer onto a deposition area of a substrate surface further comprising a non-deposition area. In use the substrate is conveyed along a plurality of deposition and separator spaces including at least two gas separator spaces...
patent 2023
document
Aiello, S. (author)
The next generation of water Cherenkov neutrino telescopes in the Mediterranean Sea are under construction offshore France (KM3NeT/ORCA) and Sicily (KM3NeT/ARCA). The KM3NeT/ORCA detector features an energy detection threshold which allows to collect atmospheric neutrinos to study flavour oscillation. This paper reports the KM3NeT/ORCA...
article 2022
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Xue, X. (author), Russ, M. (author), Samkharadze, N. (author), Undseth, B. (author), Sammak, A. (author), Scappucci, G. (author), Vandersypen, L.M.K. (author)
High-fidelity control of quantum bits is paramount for the reliable execution of quantum algorithms and for achieving fault tolerance—the ability to correct errors faster than they occur. The central requirement for fault tolerance is expressed in terms of an error threshold. Whereas the actual threshold depends on many details, a common target...
article 2022
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Noiri, A. (author), Takeda, K. (author), Nakajima, T. (author), Kobayashi, T. (author), Sammak, A. (author), Scappucci, G. (author), Tarucha, S. (author)
Fault-tolerant quantum computers that can solve hard problems rely on quantum error correction1. One of the most promising error correction codes is the surface code, which requires universal gate fidelities exceeding an error correction threshold of 99%. Among the many qubit platforms, only superconducting circuits, trapped ions and nitrogen...
article 2022
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Silvestri, F. (author), Feenstra, L.W. (author), Pettazzi, F. (author), Nijenhuis, J.R. (author), de Vreugd, J. (author), de Bruijn, D. (author), den Breeje, R. (author), Klop, W.A. (author), Ferrario, I. (author)
High throughput optical satellite communication (SATCOM) systems need to rely on effective and robust technology to enable wavelength-division multiplexing (WDM) in a commercially viable way. The main challenge to implement WDM in optical feeder links deals with the multiplexing of high power channels. Currently the levels of power required for...
conference paper 2022
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van Riggelen, F. (author), Lawrie, W.I.L. (author), Russ, M. (author), Hendrickx, N.W. (author), Sammak, A. (author), Rispler, M. (author), Terhal, B.M. (author), Scappucci, G. (author), Veldhorst, M. (author)
The fault-tolerant operation of logical qubits is an important requirement for realizing a universal quantum computer. Spin qubits based on quantum dots have great potential to be scaled to large numbers because of their compatibility with standard semiconductor manufacturing. Here, we show that a quantum error correction code can be implemented...
article 2022
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Molkenboer, F.T. (author), Jansen, R. (author), van Werkhoven, W.P. (author), Luijkx, T.S. (author), Mulckhuyse, W.F.W. (author)
public lecture 2022
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Aslam, K. (author), Hendriks, D. (author)
Applying Model-Driven Engineering can improve development efficiency. But gaining such benefits for legacy software requires models, and creating them manually is both laborious and error prone. Active automata learning has the potential to make it cost-effective, but practitioners face practical challenges applying it to software components of...
conference paper 2022
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Molkenboer, F.T. (author), Kerkhof, P.J. (author), Burema, A. (author), Haasnoot, H. (author), Velthuis, J.F.M. (author), Hooftman, T. (author), Kerkhof, P.J. (author), Lensen, H.A. (author)
public lecture 2022
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Boter, J.M. (author), Dehollain, J.P. (author), van Dijk, J.P.G. (author), Xu, Y. (author), Hensgens, T. (author), Versluis, R. (author), Naus, H.W.L. (author), Clarke, J.S. (author), Veldhorst, M. (author), Sebastiano, F. (author), Vandersypen, L.M.K. (author)
One of the main bottlenecks in the pursuit of a large-scale–chip-based quantum computer is the large number of control signals needed to operate qubit systems. As system sizes scale up, the number of terminals required to connect to off-chip control electronics quickly becomes unmanageable. Here, we discuss a quantum-dot spin-qubit architecture...
article 2022
document
Aiello, S. (author)
The optical module of the KM3NeT neutrino telescope is an innovative multi-faceted large area photodetection module. It contains 31 three-inch photomultiplier tubes in a single 0.44m diameter pressure-resistant glass sphere. The module is a sensory device also comprising calibration instruments and electronics for power, readout and data...
article 2022
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Katerinopoulou, D. (author), Pervolarakis, E. (author), Papakonstantinopoulos, C. (author), Malič, B. (author), Gelinck, G.H. (author), Kiriakidis, G. (author), Lodziana, Z. (author), Remediakis, I. (author), Iliopoulos, E. (author)
Electronic transport in transition metal spinel oxides is associated with small polaron hopping, either nearest-neighbor, resulting in Arrhenius activated conductivity, or variable energy, leading to a sub-Arrhenius relationship, with the conductivity logarithm being a convex function of inverse temperature. For the case of manganese spinel...
article 2022
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Mameli, A. (author), Shen, J. (author), Karasulu, B. (author), Roozeboom, F. (author)
Area-selective atomic layer deposition (AS-ALD) holds great potential for advancing device manufacturing.(1) Recently, outstanding progress on this topic has been made in terms of understanding and developing highly selective processes for various material systems; some of these processes have already been transferred into fabs.(2) In this work...
conference paper 2022
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Jonker, W.A. (author), Kuiper, S. (author), Kamphues, F.G. (author), Vogel, P.A. (author), Tuan Vu, A. (author), Meiners, C. (author), Horst, R. (author), Navarro, R. (author), Arnold, T. (author)
Conventionally, facesheets for deformable mirrors (DM) are manufactured through grinding, polishing and finishing of a piece of optical glass. Due to the amount of material that needs to be removed, the required surface form errors and the complex handling of the fragile product throughout all manufacturing steps, this is a lengthy, risky and...
conference paper 2022
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Jonker, W.A. (author), Kuiper, S. (author), Kamphues, F.G. (author), Bos, A. (author), Dekker, A. (author), Chun, M. (author), Benschop, A. (author), Priem, H. (author), Monna, B. (author), Nair, M. (author), Gupta, T. (author), Ackaert, G. (author), Bola, S. (author), Varvaringos, I. (author), Schroth, J. (author)
A consortium of industrial and academic partners, coordinated by TNO, is working on the realization of a 620mm adaptive secondary mirror (ASM) for the University of Hawaii’s 2.2-meter telescope. The ASM consists of a 620mm-diameter slumped convex aspherical mirror shell, manipulated by 210 variable-reluctance actuators mounted on a light...
conference paper 2022
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Nijenhuis, J.R. (author), Jonker, W.A. (author), Kamphues, F.G. (author)
TNO, in close cooperation with Demcon, has designed the Laser Projection Subsystem (LPS) for ESO’s Extremely Large Telescope (ELT). The ELT LPS will consist of up to 8 laser projection subunits. The design is based on the Four Laser Guide Star Facility (4LGSF), built for the ESO Very Large Telescope (VLT) (5). The VLT AO system has been...
conference paper 2022
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Gerini, G. (author)
In this paper, dielectric metasurfaces are proposed as engineered substrates for Surface Enhanced Raman Spectroscopy (SERS), for the detection of small biological particles, such as proteins or viruses. The advantages offered by these structures, with respect to conventional plasmonic surfaces, are discussed and the expected Enhancement Factor ...
conference paper 2022
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Nijenhuis, J.R. (author), van der Heiden, N. (author), Jonker, W.A. (author)
TMT will be a telescope with 492 segments making up the primary mirror. Each of these segments is supported with a highly sophisticated Segment Support Assembly (SSA) and each of them is to be tested for acceptance using a tool called SMATT. This tool will be mounted on top of each SSA and provides the load distribution applied to its 27 support...
conference paper 2022
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Bekman, H.H.P.T. (author), Westland, Y. (author), Elstgeest, T.H. (author), Mechielsen, T.W. (author), Haye, M.J. (author), Emmelkamp, J. (author), Molkenboer, F.T. (author), Koster, N.B. (author), Lensen, H.A. (author)
MFIG is a metrology tool for detecting low levels of contamination (Volatile Organic Compounds (VOC) and Airborne Molecular Contamination (AMC)). MFIG consist of an ion source followed by an electrostatic lens for beam focus control. After the electrostatic lens mass separation is achieved with a static magnet field. Detection is done by a...
public lecture 2022
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Philips, S.G.J. (author), Mądzik, M.T. (author), Amitonov, S.V. (author), de Snoo, S.L. (author), Russ, M. (author), Kalhor, N. (author), Volk, C. (author), Lawrie, W.I.L. (author), Brousse, D. (author), Tryputen, L. (author), Paquelet Wuetz, B. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author), Vandersypen, L.M.K. (author)
Future quantum computers capable of solving relevant problems will require a large number of qubits that can be operated reliably1. However, the requirements of having a large qubit count and operating with high fidelity are typically conflicting. Spins in semiconductor quantum dots show long-term promise2,3 but demonstrations so far use between...
article 2022
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