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van Heijst, S.E. (author)Two-dimensional (2D) layered materials have attracted the interest of the scientific community following the discovery of graphene and its extraordinary properties. Of particular interest is a class of materials called transition metal dichalcogenides (TMDs). The materials within this class were discovered to show similarly...doctoral thesis 2024
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4D-STEM Nanoscale Strain Analysis in van der Waals Materials: Advancing beyond Planar ConfigurationsBolhuis, M. (author), van Heijst, S.E. (author), Sangers, J.J.M. (author), Conesa Boj, S. (author)Achieving nanoscale strain fields mapping in intricate van der Waals (vdW) nanostructures, like twisted flakes and nanorods, presents several challenges due to their complex geometry, small size, and sensitivity limitations. Understanding these strain fields is pivotal as they significantly influence the optoelectronic properties of vdW...journal article 2024
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Lomans, Gabriël (author)Extremely large telescopes (ELTs) are expected to be one of the most promising astronomical observation instruments when it comes to observing exoplanets. During observations, however, Earth’s atmosphere introduces optical distortion, which needs to be corrected. For this reason, a wavefront sensor (WFS) will be developed that comprises a 100 ⇥...bachelor thesis 2023
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Gong, J. (author)Quantum computers have gained widespread interest from both industry and academia in the last decade as they are very promising for solving problems intractable by classical computers. However, there is a limited number of qubits in current quantum processors, which impedes the practical applications of a quantum computer. To increase the number...doctoral thesis 2023
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Roos, Matthijs (author)To better understand the formation of stars in dusty star-forming galaxies (DSFGs), and the evolution of this type of submillimeter galaxies (SMGs), it is of high significance to perform submillimeter/far-infrared surveys. The Deep Spectroscopic High-redshift Mapper 2.0 (DESHIMA2.0) on the ASTE telescope in Chile has been designed to observe the...bachelor thesis 2023
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Chiriţă, Matei (author)The aim of this paper is to complete the gap in the knowledge and experiment using as little as only the heart rate of some subjects to manage to successfully authorise them in some supposed system. The focus will be on the Gaussian Mixture model and the One Class Support Vector Machine, both outlier detectors, because most of the past research...bachelor thesis 2023
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Gong, J. (author), Charbon-Iwasaki-Charbon, E. (author), Sebastiano, F. (author), Babaie, M. (author)This article presents the first cryogenic phase-locked loop (PLL) operating at 4.2 K. The PLL is designed for the control system of scalable quantum computers. The specifications of PLL are derived from the required control fidelity for a single-qubit operation. By considering the benefits and challenges of cryogenic operation, a dedicated...journal article 2023
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Vilaboa Pérez, Jesús (author), Georges, Marc (author), Hastanin, Juriy (author), Loicq, J.J.D. (author)We present the experimental results of the proof of concept of a metrology instrument developed to characterize the cryogenic mirror of the Einstein Telescope (ET) prototype. ET is a proposed gravitational-wave observatory. The metrology instrument uses the principle of low-coherence interferometry to measure the local change in topology and...conference paper 2023
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AbuHamra, Nada (author), Abunahla, H.N. (author), Ali, Ashraf (author), Waheed, Waqas (author), Mahmoud, Saleh T. (author), AlAzzam, Anas (author), Mohammed, Baker (author)In recent years, there has been a growing interest in investigating the potential of emerging memristor (MR) devices for gas sensing applications, particularly at room temperature. This article reports on a planar Au/reduced graphene oxide (rGO)/Au memristive hydrogen sensor, fabricated on a cost-effective cyclic olefin copolymer (COC)...journal article 2023
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Jovanovic, Nemanja (author), Gatkine, Pradip (author), Anugu, Narsireddy (author), Amezcua-Correa, Rodrigo (author), Basu Thakur, Ritoban (author), Beichman, Charles (author), Bender, Chad F. (author), Endo, A. (author), Soliman, S. (author)Photonic technologies offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile that combines the light-gathering power of four 8 m telescopes through a complex photonic interferometer. Fully integrated...review 2023
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Argyriou, Ioannis (author), Lage, Craig (author), Rieke, George H. (author), Gasman, Danny (author), Bouwman, Jeroen (author), Morrison, Jane (author), Libralato, Mattia (author), Dicken, Daniel (author), Brandl, B.R. (author)Context. The Mid-Infrared Instrument (MIRI) on board the James Webb Space Telescope (JWST) uses three Si:As impurity band conduction (IBC) detector arrays. The output voltage level of each MIRI detector pixel is digitally recorded by sampling up the ramp. For uniform or low-contrast illumination, the pixel ramps become nonlinear in a...journal article 2023
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Jahangiri, M. (author), Pawluczyk, Jaroslaw (author), Dąbrowski, Karol (author), Nihtianova, S. (author)In modern nano-scale lithography, an essential role of the source, the illumination, and projection lenses is to deliver the precise amount of energy at a specific wavelength to the photoresist deposited on a wafer surface during exposure. Unfortunately, the source of the most advanced lithography processes may produce unwanted infrared...conference paper 2023
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Coesoij, R.A. (author), Musters, F.A. (author), Roos, D. (author), van Velden, T. (author), Spirito, M. (author)In this work we present calibration approaches aimed at mitigating the measurement error in testbenches featuring multiple sensor-nodes and operating over-the-air. Such errors can arise from fluctuations in component responses and mechanical tolerances of the setup. The calibration approaches are detailed for the case of the Antenna Dome...conference paper 2023
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Chan, H.W. (author), Prodanovic, V. (author), Theulings, A.M.M.G. (author), Tao, S. (author), Smedley, J. (author), Hagen, C.W. (author), Sarro, Pasqualina M (author), v.d. Graaf, H. (author)In this work we demonstrate that ultra-thin (5 and 15 nm) MgO transmission dynodes with sufficient high transmission electron yield (TEY) can be constructed. These transmission dynodes act as electron amplification stages in a novel vacuum electron multiplier: the Timed Photon Counter. The ultra-thin membranes with a diameter of 30 μm are...journal article 2023
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Song, Yiyang (author), Krasnov, O.A. (author), Yarovoy, Alexander (author)Starting from numerical simulation and comparative analysis of different polarimetric detector algorithms using the proposed Gain of Detectability measure, this paper has validated the feasibility and accuracy of polarimetric detectors in scenarios with homogeneous clutter. These algorithms’ application to real radar data with non-homogeneous...conference paper 2023
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Sattari, R. (author), van Zeijl, H.W. (author), Zhang, Kouchi (author)Wide bandgap (WBG) semiconductor technologies enable significant progress in the emergence of power modules. Power cycling at elevated temperatures causes crack or delamination failure, especially at the die-attached bonded interface in the long term. Therefore, the in-situ reliability investigation of power modules, materials, and...conference paper 2023
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Bornheim, A. (author), Lustermann, W. (author), Stachon, K. (author), Reales Gutiérrez, G. (author), Benaglia, A. (author), De Guio, F. (author), Ghezzi, A. (author), Lucchini, M. T. (author), Malberti, M. (author)The barrel section of the novel MIP Timing Detector (MTD) will be constructed as part of the upgrade of the CMS experiment to provide a time resolution for single charged tracks in the range of 30-60 ps using LYSO:Ce crystal arrays read out with Silicon Photomultipliers (SiPMs). A major challenge for the operation of such a detector is the...journal article 2023
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Hoogelander, M. (author), van Berkel, S.L. (author), Malotaux, E.S. (author), Alonso Del Pino, M. (author), Cavallo, D. (author), Spirito, M. (author), Llombart, Nuria (author)This article presents the development of a focal plane array (FPA) for terahertz imaging applications with a near diffraction-limited resolution achieved through a very tight sampling of the focal plane. The antenna array is integrated with direct detectors in a 22-nm CMOS technology and operates from 200 to 600 GHz. The tight sampling of the...journal article 2023
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Jahangiri, M. (author), Sberna, P.M. (author), Sammak, A. (author), Nihtianova, S. (author)A clear understanding of the spectral components of an irradiated beam, or captured optical emission, is essential to optimize an optical system and increase its performance. Logically, for this purpose a grating-based spectrometer could be the first choice. However, in the case of a wide range spectrum, and for radiation with one dominant...conference paper 2023
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Chang, J. (author), Gao, Jun (author), Esmaeil Zadeh, I.Z. (author), Elshaari, Ali W. (author), Zwiller, Val (author)At the core of quantum photonic information processing and sensing, two major building pillars are single-photon emitters and single-photon detectors. In this review, we systematically summarize the working theory, material platform, fabrication process, and game-changing applications enabled by state-of-the-art quantum dots in nanowire...review 2023