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- de Wit, J. (author) doctoral thesis 2023
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van der Meulen, P.Q. (author)Whereas aberrating layers are typically viewed as an impediment to medical ultrasound imaging, they can, surprisingly, also be used to our benefit. As long as we can model the effect of an aberrating layer, we can utilize ‘model-based imaging’, the imaging technique explored throughout this thesis, to reconstruct ultrasound images where...doctoral thesis 2023
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Mozaffarzadeh, M. (author), Verweij, M.D. (author), de Jong, N. (author), Renaud, G.G.J. (author)While transcranial ultrasound imaging is a promising diagnostic modality, it is still hindered due to phase aberration and multiple scattering caused by the skull. In this paper, we compare near-field phase-screen modeling (PS) to a geometry-based phase aberration correction technique (GB) when an ultrafast imaging sequence (five plane waves...journal article 2022
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Mozaffarzadeh, M. (author), Verschuur, D.J. (author), Verweij, M.D. (author), Daeichin, V. (author), de Jong, N. (author), Renaud, G.G.J. (author)Transcranial ultrasound imaging (TUI) is a diagnostic modality with numerous applications, but unfortunately, it is hindered by phase aberration caused by the skull. In this article, we propose to reconstruct a transcranial B-mode image with a refraction-corrected synthetic aperture imaging (SAI) scheme. First, the compressional sound...journal article 2022
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Hosseini, Fatemeh (author), Mozaffarzadeh, M. (author), Mahlooiifar, Ali (author), Verweij, M.D. (author), de Jong, N. (author)In recent years, transcranial photoacoustic (TPA) imaging has become a popular modality for diagnosis of brain disorders. However, due to the presence of skull, TPA images are strongly degraded. Acoustically, this degradation is mainly categorized into the phase aberration, mode-converted shear waves, and multiple scattering. Previous studies...conference paper 2022
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Hulleman, C.N. (author)<i>Localization microscopy has circumvented the diffraction limit by sequentially</i> imaging individual light emitting molecules at a time. The position of these individual molecules can be determined and a super-resolution reconstruction is made with improved resolution. Normally freely rotating emitters are used such that the point spread...doctoral thesis 2021
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- Thorsen, R.Ø. (author) doctoral thesis 2021
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Krielaart, M.A.R. (author)We propose a microscopy scheme for the controlled modulation of the electron wave front that utilizes patterned electron mirrors. The ability to control the wave front of the electron finds many applications in electron microscopy, for instance in contrast enhancement techniques, beam mode conversion, low-dose imaging techniques such as quantum...doctoral thesis 2021
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Electrostatic electron mirror in SEM for simultaneous imaging of top and bottom surfaces of a sampleAbedzadeh, Navid (author), Krielaart, M.A.R. (author), Kim, Chung Soo (author), Simonaitis, John (author), Hobbs, Richard (author), Kruit, P. (author), Berggren, Karl K. (author)The use of electron mirrors in aberration correction and surface-sensitive microscopy techniques such as low-energy electron microscopy has been established. However, in this work, by implementing an easy to construct, fully electrostatic electron mirror system under a sample in a conventional scanning electron microscope (SEM), we present a...journal article 2021
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Mozaffarzadeh, M. (author), Verweij, M.D. (author), Daeichin, V. (author), de Jong, N. (author), Renaud, G.G.J. (author)Transcranial ultrasound imaging is a suitable technology for diagnosis of strokes as it is safe, portable, relatively inexpensive and available in emergency medicine services, however it currently offers poor image quality due to the phase aberration caused by the human skull. In this work, we evaluate an approach for two-dimensional...conference paper 2021
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Van Dyk, H.O. (author)Cancer is a genetic disease. The activation, alteration or deactivation of cancer genes can stimulate undesirable cell-proliferation. Cancer genes can be subdivided into oncogenes and tumor suppressors. Oncogenes, such as growth factor receptors, are altered and/or overexpressed genes that are causally linked to tumorigenesis. Tumor suppressors,...doctoral thesis 2019
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Koeman, V.J. (author), Hindriks, K.V. (author), Gratch, Jonathan (author), Jonker, C.M. (author)To improve a negotiator's ability to recognise bidding strategies, we pro-actively provide explanations that are based on the opponent's bids and the negotiator's guesses about the opponent's strategy. We introduce an aberration detection mechanism for recognising strategies and the notion of an explanation matrix. The aberration detection...conference paper 2019
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Dwivedi, P. (author), Pereira, S.F. (author), Urbach, Paul (author)Wavefront aberration measurements are required to test an extreme ultraviolet (EUV) imaging system. For a high-NA EUV imaging system, where conventional wavefront-sensing techniques show limitations, ptychography can be used for this purpose. However, at the wavelength region of EUV (i.e., 13.5 nm), the position accuracy of the scanning mask...journal article 2019
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Wilding, D. (author)The goal of this thesis, called Physical and Computational Approaches to Aberration Correction In Fluorescence Microscopy, concerns itself with the development of new techniques to control adaptive fluorescence microscopes, so that they can adapt and image with increased resolution, contrast and speed inside complex three-dimensional biological...doctoral thesis 2018
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Tinoco Rivas, M. (author), Maduro, L.A. (author), Masaki, Mukai (author), Okunishi, Eiji (author), Conesa Boj, S. (author)Edge structures are low-dimensional defects unavoidable in layered materials of the transition metal dichalcogenides (TMD) family. Among the various types of such structures, the armchair (AC) and zigzag (ZZ) edge types are the most common. It has been predicted that the presence of intrinsic strain localized along these edges structures can...journal article 2017
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Agbana, T.E. (author), Yang, H. (author), Soloviev, O.A. (author), Vdovin, Gleb (author), Verhaegen, M.H.G. (author)This paper presents experimental results of a static aberration control algorithm based on the linear relation be- tween mean square of the aberration gradient and the second moment of point spread function for the generation of control signal input for a deformable mirror (DM). Results presented in the work of Yang et al.1 suggested a good...conference paper 2016
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Habets, Michel (author), Scholten, Joni (author), Weiland, Siep (author), Coene, W.M.J.M. (author)The imaging quality of the projection optics of an extreme ultraviolet lithography scanner degrades under the influence of thermally induced deformations of its mirrors. Wavefronts of different reticle points encounter different parts of the deformed mirrors, resulting in a field dependent wavefront error. This paper presents how ideas from...conference paper 2016
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Schouten, P.C. (author), Grigoriadis, A. (author), Kuilman, T. (author), Mirza, H. (author), Watkins, J.A. (author), Cooke, S.A. (author), Van Dyk, E. (author), Severson, T.M. (author), Rueda, O.M. (author), Hoogstraat, M. (author), Verhagen, C. (author), Natrajan, R. (author), Chin, S.F. (author), Lips, E.H. (author), Kruizinga, J. (author), Velds, A. (author), Nieuwland, M. (author), Kerkhoven, R.M. (author), Krijgsman, O. (author), Vens, C. (author), Peeper, D. (author), Nederlof, P.M. (author), Caldas, C. (author), Tutt, A.N. (author), Wessels, L.F.A. (author), Linn, S.C. (author)Breast cancers with BRCA1 germline mutation have a characteristic DNA copy number (CN) pattern. We developed a test that assigns CN profiles to be ‘BRCA1-like’ or ‘non-BRCA1-like’, which refers to resembling a BRCA1-mutated tumor or resembling a tumor without a BRCA1 mutation, respectively. Approximately one third of the BRCA1-like breast...journal article 2015
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Shakeri, S.M. (author), Hulsken, B. (author), Van Vliet, L.J. (author), Stallinga, S. (author)Whole Slide Imaging (WSI) systems are used in the emerging field of digital pathology for capturing high-resolution images of tissue slides at high throughput. We present a technique to measure the optical aberrations of WSI systems using a Shack-Hartmann wavefront sensor as a function of field position. The resulting full-field aberration maps...conference paper 2015
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Yoo, H.W. (author), Royen, M.E. (author), van Cappellen, W.A. (author), Houtsmuller, A.B. (author), Verhaegen, M.H.G. (author), Schitter, G. (author)Mismatch between the refractive indexes of immersion media and glass coverslips introduces spherical aberrations in microscopes especially for high numerical aperture objectives. This contribution demonstrates an automated adjustment of the coverslip correction collar in scanning confocal microscopy to compensate for spherical aberrations due to...journal article 2014