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Zhao, Q. (author)Fluorescence microscopy is a well-established platform for biology and biomedical research (Chapter 2). Based on this platform, fluorescence lifetime imaging microscopy (FLIM) has been developed to measure fluorescence lifetimes, which are independent of fluorophore concentration and excitation intensity and offer more information about the...doctoral thesis 2014
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Hagman, H. (author), Bäcke, O. (author), Kiskis, J. (author), Svedberg, F. (author), Jonsson, M.P. (author), Höök, F. (author), Enejder, A. (author)Nonlinear plasmonics opens up for wavelength conversion, reduced interaction/emission volumes, and nonlinear enhancement effects at the nanoscale with many compelling nanophotonic applications foreseen. We investigate nonlinear plasmonic responses of nanoholes in thin gold films by exciting the holes individually with tightly focused laser beams...journal article 2014
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Malladi, S.R.K. (author)Transmission electron microscopy (TEM) has been well known as a powerful characterisation tool to understand the structure and composition of various materials down to the atomic level. Over the years, several TEM studies have been carried out to understand the compositional, structural and morphological changes a material undergoes as a...doctoral thesis 2014
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Kozlova, T. (author), Rudneva, M. (author), Zandbergen, H.W. (author)We investigated the reversible electromigration in Pd–Pt nanobridges by means of in situ electron microscopy. Real-time nanometer-scale imaging with scanning transmission electron microscopy was used to determine the material transport. For high current densities (3–5 × 107 A cm?2), material transport occurs from the cathode towards the anode...journal article 2013
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Gaitas, A. (author)This dissertation aims to advance the current state of cantilevers with integrated metal thermal and deflection sensing elements. Metallic sensing elements enable the use of alternative substrate materials (such as polymers), that tend to exhibit higher compliance properties and are more robust (less brittle) compared to Si or Si3N4 cantilevers....doctoral thesis 2013
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Rudneva, M. (author), Gao, B. (author), Prins, F. (author), Xu, Q. (author), Van der Zant, H.S.J. (author), Zandbergen, H.W. (author)In situ transmission electron microscopy was performed on the electromigration in platinum (Pt) nanowires (14 nm thick, 200 nm wide, and 300 nm long) with and without feedback control. Using the feedback control mode, symmetric electrodes are obtained and the gap usually forms at the center of the Pt nanowire. Without feedback control,...journal article 2013
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Miwa, J.A. (author), Mol, J.A. (author), Salfi, J. (author), Rogge, S. (author), Simmons, M.Y. (author)Single phosphorus donors in silicon are promising candidates as qubits in the solid state. Here, we present low temperature scanning probe microscopy and spectroscopy measurements of individual phosphorus dopants deliberately placed in p-type silicon ?1?nm below the surface. The ability to image individual dopants combined with scanning...journal article 2013
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Brancart, J. (author), Scheltjes, G. (author), Diaz, M.M. (author), Van Mele, B. (author), Van Assche, G. (author)Research in the field of smart materials that exhibit self-repair mechanisms has greatly expanded over the last few years. This is especially true for polymers and polymer composite materials. One class of self-healing polymer materials is the reversible polymer network systems that use dynamic covalent bonds as a means to repair sustained...conference paper 2013
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Vulovic, M. (author)Knowledge of the structure of biological specimens is crucial for understanding life. Cryo-electron microscopy (cryo-EM) permits structural studies of biological specimen at their near-native state. The research performed in this thesis represents one of two subprojects of the FOM industrial partnership program with FEI Company. The common aim...doctoral thesis 2013
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Ghodrat, S. (author)Cast iron components in combustion engines, such as cylinder blocks and heads of trucks, are exposed for long periods of time to elevated temperatures. Moreover, the engines are started and stopped frequently during their operational life, constituting a large number of heating and cooling cycles. In geometrical complex components the sudden...doctoral thesis 2013
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He, Z. (author), Tian, H. (author), Deng, G. (author), Xu, Q. (author), Van Tendeloo, G. (author)The microstructure of the charge/orbital ordering Ruddleden-Popper phase PrCa2Mn2O7 was studied by transmission electron microscopy along both the [001] and the [110] orientation. Three coexisting charge/orbital ordering phases CO1, CO2, and CO3 were observed along the [001] orientation at room temperature. Different from the one-dimensional...journal article 2013
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Heyer, A. (author)Microbiologically influenced corrosion (MIC) is known to be a dangerous process in ship tanks due to its rapid and yet unpredictable occurrence, leading to extremely fast local corrosion, possibly jeopardizing the structural integrity, in a relatively short time. This project focuses on a fundamental understanding of MIC processes in ship...doctoral thesis 2013
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Dogan, I. (author), Kramer, N.J. (author), Westermann, R.H.J. (author), Dohnalova, K. (author), Smets, A.H.M. (author), Verheijen, M.A. (author), Greogorkiewicz, T. (author), Van de Sanden, M.C.M. (author)We demonstrate a method for synthesizing free standing silicon nanocrystals in an argon/silane gas mixture by using a remote expanding thermal plasma. Transmission electron microscopy and Raman spectroscopy measurements reveal that the distribution has a bimodal shape consisting of two distinct groups of small and large silicon nanocrystals with...journal article 2013
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Non-conducting interfaces of LaAlO3/SrTiO3 produced in sputter deposition: The role of stoichiometryDildar, I.M. (author), Boltje, D.B. (author), Hesselberth, M.H.S. (author), Aarts, J. (author), Xu, Q. (author), Zandbergen, H.W. (author), Harkema, S. (author)We have investigated the properties of interfaces between LaAlO3 films grown on SrTiO3 substrates singly terminated by TiO2. We used RF sputtering in a high-pressure oxygen atmosphere. The films are smooth, with flat surfaces. Transmission electron microscopy shows sharp and continuous interfaces with some slight intermixing. The elemental ratio...journal article 2013
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Gaitas, A. (author), Wolgast, S. (author), Covington, E. (author), Kurdak, C. (author)Measuring the temperature profile of a nanoscale sample using scanning thermal microscopy is challenging due to a scanning probe's non-uniform heating. In order to address this challenge, we have developed a calibration sample consisting of a 1-?m wide gold wire, which can be heated electrically by a small bias current. The Joule heating in the...journal article 2013
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Meddens, M.B.M. (author), Rieger, B. (author), Figdor, C.G. (author), Cambi, A. (author), Van den Dries, K. (author)Podosomes are cellular adhesion structures involved in matrix degradation and invasion that comprise an actin core and a ring of cytoskeletal adaptor proteins. They are most often identified by staining with phalloidin, which binds F-actin and therefore visualizes the core. However, not only podosomes, but also many other cytoskeletal structures...journal article 2013
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Rudneva, M. (author)In the present thesis the combination of real-time electricalmeasurements on nano-sampleswith simultaneous examination by transmission electron microscope (TEM) is discussed. Application of an electrical current may lead to changes in the samples thus the possibility to correlate such changes with the corresponding I-V measurements is very...doctoral thesis 2013
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- Valcke, S.L.A. (author), Polder, R.B. (author), Beijersbergen van Henegouwen, J.F. (author) conference paper 2012
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Zhao, Q. (author), Schelen, B. (author), Schouten, R. (author)We have built an all-solid-state camera that is directly modulated at the pixel level for frequency-domain fluorescence lifetime imaging microscopy (FLIM) measurements. This novel camera eliminates the need for an image intensifier through the use of an application-specific charge coupled device design in a frequency-domain FLIM system. The...journal article 2012
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- Sakic, A. (author) doctoral thesis 2012