Searched for: mods_originInfo_publisher_s:"SPIE"
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Saathof, R. (author), Meskers, A.J.H. (author), van Kempen, F.C.M. (author), Witvoet, G. (author), Korevaar, C.W. (author), de Lange, T.J. (author), Crowcombe, E.E. (author), Fritz, E.C. (author), van de Pol, M. (author)
Optical satellite communications is a maturing technology to enable word-wide access to high throughput internet. In the past years a lot of effort has been taken to increase the applicability and the TRL of this technology. In collaboration with industry, TNO initiated several developments for space and ground technologies. Many of these...
conference paper 2021
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Aiello, S. (author)
The KM3NeT infrastructure consists of two deep-sea neutrino telescopes being deployed in the Mediterranean Sea. The telescopes will detect extraterrestrial and atmospheric neutrinos by means of the incident photons induced by the passage of relativistic charged particles through the seawater as a consequence of a neutrino interaction. The...
article 2021
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Dirks, B.P.F. (author), Ferrario, I. (author), Le Pera, A. (author), Vito Finocchiaro, D. (author), Desmons, M. (author), de Lange, T.J. (author), de Man, H. (author), Meskers, A.J.H. (author), Morits, J.P.J. (author), Neumann, N.M.P. (author), Saathof, R. (author), Witvoet, G. (author)
Due to the distance limitation of quantum communication via ground-based fibre networks, space-based quantum key distribution (QKD) is a viable solution to extend such networks over continental and, ultimately, over global distances. Compared to Low Earth Orbits (LEO), QKD from a Geostationary Orbit (GEO) offers substantial advantages, such as...
conference paper 2021
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De Biasio, M. (author), Zikulnig, J. (author), Muehleisen, W. (author), Kraft, M. (author), Simor, M. (author), Bolt, P.J. (author)
Copper Indium Gallium Selenide (CIGS) thin-film solar cells are a promising technology, but inline quality inspection systems are required for efficient high-volume production. Tests with two candidate methods: Raman spectroscopy and photo-luminescence imaging, are reported in this paper. The methods were used to estimate material compositions...
conference paper 2021
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Bouma, H. (author), Reuter, A. (author), Brouwer, P. (author), George, M. (author), Ferryman, J. (author), Boyle, J. (author), Juršėnas, A. (author), Karinsalo, A. (author), Pruim, R.H.R. (author), van Rooijen, A.L. (author), ten Hove, R.J.M. (author), van Mil, J.D. (author), Gicic, D. (author), Goller, G. (author), Ledinauskas, E. (author), Ruseckas, J. (author), Kromhout, B. (author), de Moel, H. (author), Dolstra, N. (author)
Authentication of travel documents (e.g., passports) and breeder documents (e.g., birth certificates) is important to facilitate legal movement of passengers and to prevent cross-border crime, such as terrorism, smuggling, illegal migration and human trafficking. However, it is time consuming and difficult to verify all security features, the...
conference paper 2021
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de Dominicis, L. (author), Bouma, H. (author), Toivonen, S. (author), Stifini, C. (author), Villani, M.L. (author), de Nicola, A. (author), van Rooijen, A.L. (author), Baan, J. (author), Peltola, J. (author), Lämsä, A. (author), Räsänen, P. (author)
conference paper 2021
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den Hollander, R.J.M. (author), van Rooij, S.B. (author), van den Broek, S.P. (author), Dijk, J. (author)
An important surveillance task during naval military operations is early risk assessment of vessels. The potential risk that a vessel poses will depend on the vessel type, and vessel classification is therefore a basic technique in risk assessment. Although automatic identification by AIS is widely available, the AIS transponders can potentially...
conference paper 2021
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van Es, M.H. (author), Quesson, B.A.J. (author), Mohtashami, A. (author), Piras, D. (author), Hatakeyama, K. (author), Fillinger, L. (author), van Neer, P.L.M.J. (author)
In order to extract ever more performance from semiconductor devices on the same device area, the semiconductor industry is moving towards device structures with increasingly complex material combinations and 3D geometries. To ensure cost effective fabrication of next generation devices, metrology solutions are needed that tackle the specific...
conference paper 2020
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Müller, W. (author), Reinert, F. (author), Rieter-Barrell, Y. (author), Ditzel, M. (author), Rojer, J. (author), Barbero, F. (author), Martínez, J.M.N. (author), Svensson, K. (author), Arecchi, A. (author)
In multinational defence operations, either EU or NATO driven, the exchange of surveillance and reconnaissance data and information is an essential aspect to provide to the commander the needed situational awareness. This improvement of situational awareness, especially in a maritime environment, may be achieved amongst others by extending the...
conference paper 2020
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Theodorakos, I. (author), Zacharatos, F. (author), Makrygianni, M. (author), Kalaitzis, A. (author), Koritsoglou, O. (author), Ankri, J. (author), Schwarzbaum, A. (author), Melamed, A. (author), Giesbers, M. (author), Arutinov, G. (author), Tuohi, S. (author), Arnaldo, D. (author), Braz, N. (author), Geremia, R. (author), Karnakis, D. (author), Melamed, S. (author), Kabla, A. (author), de la Vega, F. (author), Kariyapperuma, D. (author), Cobb, B. (author), Price, R. (author), Too, P. (author), Norval, S. (author), Zergioti, I. (author)
The recent developments in the field of large area, flexible and printed electronics have fueled substantial advancements in Laser Printing and Laser Sintering, which have been attracting interest over the past decade. Resulting applications, ranging from flexible displays and sensors, to biometric devices and healthcare, have already showcased...
conference paper 2020
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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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Roulet, M. (author), Atkins, C. (author), Hugot, E. (author), Snell, R. (author), van de Vorst, B. (author), Morris, K. (author), Marcos, M. (author), Todd, I. (author), Miller, C. (author), Dufils, J. (author), Farkas, S. (author), Mezo, G. (author), Tenegi, F. (author), Vega-Moreno, A. (author), Schnelter, H. (author)
In this paper we are exploring the possibilities of 3D printing in the fabrication of mirrors for astronomy. Taking the advantages of 3D printing to solve the existing problems caused by traditional manufacturing, two proof-of- concept mirror fabrication strategies are investigated in this paper. The first concept is a deformable mirror with...
article 2020
document
van Es, M.H. (author), Quesson, B.A.J. (author), Mohtashami, A. (author), Piras, D. (author), Hatakeyama, K. (author), Fillinger, L. (author), van Neer, P.L.M.J. (author)
In order to extract ever more performance from semiconductor devices on the same device area, the semiconductor industry is moving towards device structures with increasingly complex material combinations and 3D geometries. To ensure cost effective fabrication of next generation devices, metrology solutions are needed that tackle the specific...
conference paper 2020
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Boehrer, N. (author), Gabriel, A. (author), Brandt, A. (author), Uijens, W.R. (author), Kampmeijer, L. (author), van der Stap, N. (author), Schutte, K. (author)
With the latest advances in image sensor technology, cameras are able to generate video with tens of megapixels per frame. These high resolution videos streams offer great potential to be used in the surveillance domain. For ground based systems, gigapixel streams are already used with great effect as illustrated by the ICME 2019 crowd counting...
conference paper 2020
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Veerman, H.E.T. (author), Schleijpen, H.M.A. (author), Brettschneider, S.A. (author), Amram, R. (author)
The observable infrared signature of naval platforms is crucial in determining survivability and is therefore an important issue in warfare. Increased detectability in the EM spectrum leads to higher susceptibility against threats like sea skimming anti-ship missiles. The infrared platform signature is not a fixed quantity but a highly dynamic...
conference paper 2020
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van der Walle, P. (author), Stortelder, J.K. (author), Wu, C.C. (author), Lensen, H.A. (author), Koster, N.B. (author)
The EUV BeamLine 2 (EBL2) is being used to expose samples to EUV radiation for optics and mask lifetime testing. Before and after exposure the samples can be analyzed in-situ by X-ray photoelectron spectroscopy (XPS). During exposure the samples can be monitored in real-time by an imaging ellipsometer. We report on the development of two...
conference paper 2020
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Schleijpen, H.M.A. (author), van Binsbergen, S.A. (author), Geljon, M. (author), Meuken, D. (author), Deiana, D. (author)
This paper will report on a first series of experiments of High Energy Laser effects on drones and drone components at TNO. After a description of the 30kW L3O laser facility at TNO, the experimental results will be discussed. The experiments were performed in an indoor facility and some considerations will be given on how to set up the...
conference paper 2020
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Farkas, S. (author), Agocs, T. (author), Atkins, C. (author), Brouwers, L. (author), Dufils, J. (author), Joo, A. (author), MezA', G. (author), Morris, K. (author), Rodenhuis, M. (author), Roulet, M. (author), Schnetler, H. (author), Snell, R. (author), Tenegi Sanginés, F. (author), Vega-Moreno, A. (author), van de Vorst, L.T.G. (author)
A possible answer to the challenge brought by the construction of the next generation 40 m-class telescopes was the case study of FAME (Freeform Active Mirror Experiment). As the new instruments typically increased in both volume and complexity, the use of highly aspherical freeform surfaces could be a great solution as these systems are built...
conference paper 2020
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Snell, R. (author), Atkins, C. (author), Schnetler, H. (author), Todd, I. (author), Hernández-Nava, E. (author), Lyle, A.R. (author), Maddison, G. (author), Morris, K. (author), Miller, C. (author), Roulet, M. (author), Hugot, E. (author), Tenegi Sanginés, F. (author), Vega-Moreno, A. (author), Van De Vorst, L.T.G. (author), Dufils, J. (author), Brouwers, L. (author), Farkas, S. (author), MezA, G. (author), Beardsley, M. (author), Harris, M. (author)
Additive Manufacturing (AM; 3D printing) for mirror fabrication allows for intricate designs that can combine lightweight structures and integrated mounting. Conventional lightweight structures utilise cubic or prismatic unit cells, which do not provide uniform support at the edge of curved mirrors. We present a new circular lattice based upon...
conference paper 2020
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Schnetler, H. (author), van de Vorst, L.T.G. (author), Snell, R. (author), Atkins, C. (author), Miller, C. (author), Morris, K. (author), Farkas, S. (author), MezA, G. (author), Roulet, M. (author), Hugot, E. (author), Vega-Moreno, A. (author), Tenegi Sanginés, F. (author), Dufils, J. (author)
Additive manufacturing (AM) methods and post processing techniques are promising methodologies considering that it is now possible to print in a wide variety of materials using processes much refined from those originally available twenty years ago. To date the uptake of AM in Astronomy is relatively low compared to other application areas,...
conference paper 2020
Searched for: mods_originInfo_publisher_s:"SPIE"
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