- document
-
Kramer, L. (author), Peters, J. (author), Voorhoeve, R.J. (author), Witvoet, G. (author), Kuiper, S. (author)The demand for higher data transfer between satellites and ground stations is ever increasing. To address this, (free-space) optical communication (OC) technology is emerging. Pointing mechanisms with low size, weight and power (SWaP), high accuracy and low recurring costs are key enablers for constellations of OC systems. In this paper, TNO...conference paper 2020
- document
-
Saathof, R. (author), Kuiper, S. (author), Crowcombe, W.E. (author), de Man, H. (author), de Lange, T.J. (author), van der Valk, N.C.J. (author), Kramer, L. (author), Fritz, E.C. (author)Optical communications will complement radio frequency (RF) communications in the coming decades to enhance throughput, power efficiency and link security of satellite communication links. To enable optical communications technology for intersatellite links and (bi-directional) ground to satellite links, TNO develops a suite of technologies in...conference paper 2019
- document
-
Herfst, R.W. (author), Nulkes-de Groot, N. (author), Lucas, P. (author), Bijnagte, T. (author), Dekker, B. (author), Biemond, J.J.B. (author), van Riel, M.J.C.M. (author), van Essen, B.H.M.F. (author), van Koppen, M.E.C.T. (author), Oosterling, J.A.J. (author), Kramer, L. (author), Nieuwkoop, E. (author), Corbet, F. (author), Visser, L. (author), Man, H. (author)We developed a new 3D-AFM technique that enables imaging of high aspect ratio trenches. By measuring both lateral and vertical forces on a cantilever tip, a subharmonic mode based on the attractive tip-sample forces becomes feasible. This enables the measurement of true 3D information of samples without causing damage. This is especially...other 2019
- document
-
Kuiper, S. (author), Kramer, L. (author), Siegl, M. (author), Spierdijk, J.P.F. (author), Moens, T.M.N. (author), Peters, J. (author), Oostdijck, B. (author), Crowcombe, W.E. (author)TNO’s is developing Coarse Pointing Assembly technology aimed at the needs for future laser communication systems.other 2019
- document
-
Kuiper, S. (author), Kramer, L. (author), Dekker, B. (author), Nieuwkoop, E. (author), Witvoet, G. (author), Human, J.D. (author), Lemmen, M.H.J. (author), Crowcombe, W.E. (author)TNO’s FSM technology is based on a unique electromagnetic actuator. The key benefits of this technology for are: Large range; ±2˚ optical range (both axis) - High band width: Closed loop bandwidth > 1kHz - Highly compact; ø27x30mm with ø20mm mirror - Reliable; Redundant windings, no wear, Passed life-time testing.other 2019
- document
-
van den Dool, T.C. (author), Kramer, L. (author), Kruidhof, R. (author), Kastelein, A. (author), Dekker, B. (author), Nieuwkoop, E. (author), Lugtenburg, J. (author)This project is aiming to realize miniature self-contained carriers that can independently perform positioning and scanning tasks on nano-scale. Such carriers can support agents for performing tasks such as inspection, deposition, repair, and cleaning. All at the nano-scale. The carriers can make large movements in X-and Y-direction and have a...other 2019
- document
-
Kuiper, S. (author), Kramer, L. (author), Kooper, M. (author), Crowcombe, W.E. (author)TNO’s is developing Coarse Pointing Assembly technology aimed at the needs for future laser communication systems.other 2019
- document
-
Kramer, L. (author), van den Dool, T.C. (author), Witvoet, G. (author)Abstract: High throughput qualification of semiconductor devices is needed to improve cost efficiency. This paper describes a nano-precision capable, multi-agent, flexible positioning platform, which can be used to increase (metrology) throughput in semiconductor industry by parallelization of measurements. It is based on magnetic levitation and...conference paper 2019
- document
-
Kramer, L. (author), van den Dool, T.C. (author), Witvoet, G. (author)A nano-precision-capable, multi-agent, flexible positioning platform can be used to increase (metrology) throughput in semiconductor industry by parallelisation of measurements. It is based on magnetic levitation (MagLev) and 6-DoF control, combining large x- and y-motions with sub-nanometer scanning resolution in a single stage. The system...article 2019
- document
-
Witvoet, G. (author), Nijenhuis, J.R. (author), Kramer, L. (author)The preparations for the design and construction of the Extremely Large Telescope (ELT) are in full swing. One of the most critical components of this enormous telescope is its segmented primary mirror (M1), for which TNO, in collaboration with VDL, has designed the mechanical segment support in the period 2015-2016. The dynamic performance of...article 2018
- document
-
Witvoet, G. (author), Nijenhuis, J.R. (author), Kramer, L. (author)The preparations for the design and construction of the Extremely Large Telescope (ELT) are in full swing. One of the most critical components of this enormous telescope is its segmented primary mirror (M1), for which Netherlands Organisation for Applied Scientific Research (TNO), in collaboration with VDL, has designed the mechanical segment...conference paper 2018
- document
-
Sadeghian Marnani, H. (author), Bijnagte, A.A. (author), Herfst, R.W. (author), Kramer, G.F.IJ. (author), Kramer, L. (author), Dekker, A. (author)In atomic force microscopy (AFM), the exchange and alignment of the AFM cantilever with respect to the optical beam and position-sensitive detector (PSD) are often performed manually. This process is tedious and time consuming, and sometimes damages the cantilever or tip. To increase the throughput of AFM in industrial applications, the ability...article 2017