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Xiao, Y. (author)Additively manufacturing can bring opportunities and risk factors to the aerospace industry. On one hand, additive manufacturing allows the manufacturing of structures with geometries that are difficult or impossible to fabricatewith conventional machining procedures. This geometry flexibility may lead to components with a greater strength-to...doctoral thesis 2023
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- de Wit, J. (author) doctoral thesis 2023
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Paredes-Vallés, Federico (author)In the ever-evolving landscape of robotics, the quest for advanced synthetic machines that seamlessly integrate with human lives and society becomes increasingly paramount. At the heart of this pursuit lies the intrinsic need for these machines to perceive, understand, and navigate their surroundings autonomously. Among the senses, vision...doctoral thesis 2023
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Arora, S. (author)The aimof this thesis is to investigate the impact of symmetry on light and how it alters its characteristics. Our research centers around the examination of complex photonic crystals rooted in the concept of photonic topological insulators, which are analogs of topological insulators initially introduced in condensed matter physics. Unlike...doctoral thesis 2023
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Noordam, M.L. (author)In this thesis, we explore the interaction between multiple optical light fields. Although these light fields can interfere with each other in a vacuum, actual interaction can only occur in a medium. This interaction can be amplified in materials with nanoscale dimensions such as a monolayer of WS2 and metallic nanostructures. The shapes of...doctoral thesis 2023
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Hou, Z. (author)In this thesis, we explore how lens design and optimization techniques can adapt to the design (optimization) space in order to increase the lens design efficiency. We extensively discuss the Saddle Point Construction (SPC), a method that can systematically search for new solutions, as well as replace high-dimensional searches with a discrete...doctoral thesis 2023
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Loozen, G.B. (author)Optofluidic lab-on-a-chips (LOCs) employing a dual-waveguide trap for optical trapping and Raman spectroscopy have proven to be attractive and potent tools for high throughput chemical fingerprinting of bio-particles for disease diagnosis. Among the relevant bio-particles are extracellular vesicles (EVs) which a been proven through recent...doctoral thesis 2023
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Wang, X. (author)In this thesis, fibre optic sensing has been investigated as an important technique for structural health monitoring. Distributed fibre optic sensing based on Rayleigh scattering is a fibre optic sensing technique to achieve the spatially continuous strain monitoring for critical locations for the structures. However, the Rayleigh backscattering...doctoral thesis 2023
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- Zhang, X. (author) doctoral thesis 2023
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Panichella, A. (author), Di Domenico, Giuseppe (author)Spatial mode division de-multiplexing of optical signals has many real-world applications, such as quantum computing and both classical and quantum optical communication. In this context, it is crucial to develop devices able to efficiently sort optical signals according to the optical mode they belong to and route them on different paths....conference paper 2023
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Xiao, Y. (author), Rans, C.D. (author), Zarouchas, D. (author), Benedictus, R. (author)Embedding fiber optic sensors (FOSs) within parts for strain measurement is attracting widespread interest due to its great potential in the field of structural health monitoring (SHM). This work proposes a novel method of embedding FOSs using capillaries within solid structures and investigates fiber positions and orientation uncertainties...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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Pierzyna, Maximilian (author), Saathof, R. (author), Basu, S. (author)Free-Space Optical Communication (FSOC) links are considered a key technology to support the increasing needs of our connected, data-heavy world, but they are prone to disturbance through atmospheric processes such as optical turbulence. Since turbulence is highly dependent on local topographic and meteorological conditions, modeling optical...conference paper 2023
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Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)Transient motion, turbulence and bubble dynamics make any velocity quantification extremely difficult in unsteady gas–liquid flows. In the present study, novel Eulerian and Lagrangian techniques of velocimetry were developed, using both intrusive and non-intrusive measurements. The selected unsteady gas–liquid flow was a breaking bore,...journal article 2023
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Mulder, J.T. (author), Meijer, M.S. (author), van Blaaderen, J.J. (author), du Fossé, I. (author), Jenkinson, Kellie (author), Bals, Sara (author), Manna, Liberato (author), Houtepen, A.J. (author)Ytterbium-doped LiYF4 (Yb:YLF) is a commonly used material for laser applications, as a photon upconversion medium, and for optical refrigeration. As nanocrystals (NCs), the material is also of interest for biological and physical applications. Unfortunately, as with most phosphors, with the reduction in size comes a large reduction of the...journal article 2023
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Bannenberg, L.J. (author)Here, a method to suppress drift in intensity-modulated sensors is presented that preserves the advantages of such sensors including simplicity and low-cost components. This method is illustrated using metal hydride-based optical hydrogen sensors that can reliably, accurately, and quickly sense hydrogen across a large concentration range....journal article 2023
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Korevaar, C.W. (author), Saathof, R. (author), van Abkoude, Tara (author), Doelman, Niek J. (author)Optical feeder links (OFLs) benefit from the vast amount of bandwidth available in the THz-regime of the electromagnetic spectrum, and can be considered as enablers for future terabit-per-second satellite systems. A particular challenge for OFLs is to mitigate the effects of fading, caused by a combination of turbulence-induced scintillation,...conference paper 2023
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Serati de Brito, Caique (author), Faria Junior, Paulo E. (author), Ghiasi, T.S. (author), Ingla Aynés, J. (author), Rabahi, César Ricardo (author), Cavalini, Camila (author), Mañas Valero, S. (author), Taniguchi, Takashi (author), van der Zant, H.S.J. (author)van der Waals heterostructures composed of two-dimensional (2D) transition metal dichalcogenides and vdW magnetic materials offer an intriguing platform to functionalize valley and excitonic properties in nonmagnetic TMDs. Here, we report magneto photoluminescence (PL) investigations of monolayer (ML) MoSe<sub>2</sub> on the layered A-type...journal article 2023
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Tawade, P. (author), Mastrangeli, Massimo (author)Demand for biocompatible, non-invasive, and continuous real-time monitoring of organs-on-chip has driven the development of a variety of novel sensors. However, highest accuracy and sensitivity can arguably be achieved by integrated biosensing, which enables in situ monitoring of the in vitro microenvironment and dynamic responses of tissues...review 2023
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Bauer, T.A. (author), Davis, Timothy J. (author), Frank, Bettina (author), Dreher, Pascal (author), Janoschka, David (author), Meiler, Tim C. (author), Meyer zu Heringdorf, Frank J. (author), Kuipers, L. (author), Giessen, Harald (author)The creation and manipulation of optical vortices, both in free space and in two-dimensional systems such as surface plasmon polaritons (SPPs), has attracted widespread attention in nano-optics due to their robust topological structure. Coupled with strong spatial confinement in the case of SPPs, these plasmonic vortices and their underlying...journal article 2023