Searched for: subject%3A%22Diffraction%22
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Corley-Wiciak, C. (author), Richter, C. (author), Zoellner, M.H. (author), Zaitsev, I. (author), Manganelli, C.L. (author), Zatterin, E. (author), Schülli, T.U. (author), Corley-Wiciak, A.A. (author), Katzer, J. (author), Reichmann, F. (author), Klesse, W.M. (author), Hendrickx, N.W. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author), Virgilio, M. (author), Capellini, G. (author)
A strained Ge quantum well, grown on a SiGe/Si virtual substrate and hosting two electrostatically defined hole spin qubits, is nondestructively investigated by synchrotron-based scanning X-ray diffraction microscopy to determine all its Bravais lattice parameters. This allows rendering the three-dimensional spatial dependence of the six strain...
article 2023
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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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Aninat, R. (author), Hovestad, A. (author), van Zelst, F. (author), van den Bruele, F.J. (author), Schermer, J.J. (author), Emmelkamp, J. (author), Vlieg, E. (author), Linden, H. (author), Theelen, M. (author)
We study by in-situ X-ray diffraction (XRD) in a unique, custom-made furnace mimicking an industrial setup, the effect of pre-annealing on electroplated and sputtered thin films of Cu-In-Ga, as precursor material for Cu(In,Ga)(S,Se)2 (CIGS)-based solar cells. In the first part of the paper, the properties of the as-deposited precursors are...
article 2022
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Kizhakkekundil, S. (author), Morais, J. (author), Braam, S. (author), Litjens, R. (author)
conference paper 2021
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Aninat, R. (author), van den Bruele, F.J. (author), Schermer, J.J. (author), Tinnemans, P. (author), Emmelkamp, J. (author), Vlieg, E. (author), van der Vleuten, M. (author), Linden, H. (author), Theelen, M. (author)
The selenisation of Cu-Ga-In metallic precursors is investigated by in-situ X-Ray Diffraction (XRD) in a selenisation tool which mimics at the laboratory scale an industrial tool (thus fully scalable) and allows fine control over the selenisation parameters and reproducibility. In this setup, the interdiffusion of Ga and In was significantly...
article 2021
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Silvestri, F. (author), Pettazzi, F. (author), Eschen, M. (author), Boschma, J.J. (author), Lutgerink, J.B. (author), Kramer, G.F.IJ. (author), Korevaar, W.C. (author), den Breeje, R. (author), Duque, C.M. (author), Doelman, N.J. (author)
Optical satellite communication is growing fast and among various applications it requires higher throughput optical feeder links. Optical feeder links for satellite communication necessitate very high data throughput, up to 1 Terabit/s and beyond. Amongst several multiplexing strategies, dense wavelength division holds a key position to enable...
conference paper 2020
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Wang, J. (author), Zardetto, V. (author), Datta, K. (author), Zhang, D. (author), Wienk, M.M. (author), Janssen, R.A.J. (author)
Perovskite semiconductors hold a unique promise in developing multijunction solar cells with high-efficiency and low-cost. Besides design constraints to reduce optical and electrical losses, integrating several very different perovskite absorber layers in a multijunction cell imposes a great processing challenge. Here, we report a versatile two...
article 2020
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Nieuwenhuizen, R.P.J. (author), Bouwman, D.D. (author), Schutte, K. (author)
High resolution images are critical for a wide variety of military detection, recognition and identification tasks. Super-resolution reconstruction algorithms aim to enhance the image resolution beyond the capability of the imaging system being used. Until recently, undersampling of the optical signal on the image sensor has been the key factor...
conference paper 2018
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Hobbs, C. (author), Jaskaniec, S. (author), McCarthy, E.K. (author), Downing, C. (author), Opelt, K. (author), Güth, K. (author), Shmeliov, A. (author), Mourad, M.C.D. (author), Mandel, K. (author), Nicolosi, V. (author)
A comprehensive nanoscale understanding of layered double hydroxide thermal evolution is critical for their current and future applications as catalysts, flame retardants and oxygen evolution performers. In this report, we applied in situ transmission electron microscopy to extensively characterise the thermal progressions of nickel-iron...
article 2018
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Heaney, K.D. (author), Prior, M. (author), Campbell, R.L. (author)
The ocean is nearly transparent to low frequency sound permitting the observation of distant events such as earthquakes or explosions at fully basin scales. For very low frequency the ocean acts as a shallow-water waveguide and lateral variability in bathymetry can lead to out-of-plane effects. In this paper, data from the International...
article 2017
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Cotel, A. (author), Liard, A. (author), Desserouer, F. (author), Pichon, P. (author), van der Valk, N.C.J. (author)
Optical components such as diffraction gratings are widely used in Space-flight satellites to analyse light properties from soft-X rays to Infra-Red. The diffraction gratings are one of the key optical components of space-flight instruments and have to exhibit very high optical performances. TROPOMI (Tropospheric Monitoring Instrument) is a...
conference paper 2017
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Herfst, R.W. (author), Bijster, R.J.F. (author), Dekker, A. (author), Wei, J. (author), van Zeijl, H.W. (author), Kruidhof, R. (author), Sadeghian Marnani, H. (author)
High resolution and high throughput imaging are typically mutually exclusive. While there is a wide range of techniques to image features beyond the diffraction limit of light, they all have their own benefits and drawbacks, but they are often very slow compared to optical systems. As such, extending the performance of optical microscopes...
conference paper 2017
document
Silvestri, F. (author), Gerini, G. (author), Bäumer, S.M.B. (author)
In the last years, much interest has grown around the concept of optical surfaces employing high contrast dielectric resonators. However, a systematic approach for the design of this optical surfaces under particular requirements has never been proposed. In this contribution, we describe this approach applied to the robust design of an array of...
conference paper 2017
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Bussink, P.G.W. (author), Volatier, J.B. (author), van der Walle, P. (author), Fritz, E.C. (author), van der Donck, J.C.J. (author)
The Rapid Nano is a particle inspection system developed by TNO for the qualification of EUV reticle handling equipment. The detection principle of this system is dark-field microscopy. The performance of the system has been improved via model-based design. Through our model of the scattering process we identified two key components to improving...
conference paper 2016
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Theelen, M. (author), Hendrikx, R. (author), Barreau, N. (author), Steijvers, H. (author), Böttger, A. (author)
Unencapsulated CIGS solar cells were simultaneously exposed to damp heat and illumination. In-situ monitoring of their electrical parameters demonstrated a rapid decrease of the efficiency, mainly driven by changes in the series and shunt resistances. The non-degraded and degraded solar cells were studied by SIMS and XRD to investigate the...
article 2016
document
Kuiper, S. (author), Fritz, E.C. (author), Crowcombe, W.E. (author), Liebig, T. (author), Kramer, G.F.I. (author), Witvoet, G. (author), Duivenvoorde, T. (author), Overtoom, A.J. (author), Rijnbeek, R.A. (author), van Zwet, E.J. (author), van Dijsseldonk, A. (author), den Boef, A. (author), Beems, M. (author), Levasier, L. (author)
Nowadays most overlay metrology tools assess the overlay performance based on marker features which are deposited next to the functional device features within each layer of the semiconductor device. However, correct overlay of the relatively coarse marker features does not directly guarantee correct overlay of the much smaller device features....
conference paper 2016
document
Houben, M.E. (author), Barnhoorn, A. (author), Wasch, L. (author), Trabucho-Alexandre, J. (author), Peach, C.J. (author), Drury, M.R. (author)
The Toarcian (Early Jurassic) Posidonia Shale Formation is a possible unconventional gas source in Northern Europe and occurs within the Cleveland Basin (United Kingdom), the Anglo-Paris Basin (France), the Lower Saxony Basin and the Southwest Germany Basin (Germany), and the Roer Valley Graben, the West Netherlands Basin, Broad Fourteens Basin,...
article 2016
document
Halswijk, W.H.C. (author)
TNO is developing a flexible blast effects module suited to be used in simulations of MOUT scenarios. The aim of the module is to fill the gap between semi-empirical free-air blast relations (with a lower fidel-ity and complexity) and CFD (with larger computational efforts). The module is suited for vulnerabil-ity/lethality (V/L) assessments and...
conference paper 2015
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Fossdal, A. (author), Darell, O. (author), Lambert, A. (author), Schols, E. (author), Comte, E. (author), Leenman, R.N. (author), Blom, R. (author)
Dimensional and phase changes of four candidate oxygen carrier materials for chemical looping combustion are investigated by dilatometry and high-temperature X-ray diffraction during four redox cycles. NiO/Ni2AlO4 does not exhibit significant dimensional changes during cycling, and it is shown that the support material also contributes to the...
article 2015
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Fillinger, L. (author), Nijhof, M.J.J. (author), de Jong, C.A.F. (author)
A decade ago, TNO developed RASP (Rapid Acoustic Signature Prediction), a numerical model for the prediction of the target strength of immersed underwater objects. The model is based on Kirchhoff diffraction theory. It is currently being improved to model refraction, angle dependent reflection and transmission (possibly through anisotropic...
conference paper 2014
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