Searched for: department:"Imaging%5C+Physics"
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Siemons, M.E. (author), Thorsen, R.Ø (author), Smith, C.S. (author), Stallinga, S. (author)
Point spread function (PSF) engineering is used in single emitter localization to measure the emitter position in 3D and possibly other parameters such as the emission color or dipole orientation as well. Advanced PSF models such as spline fits to experimental PSFs or the vectorial PSF model can be used in the corresponding localization...
journal article 2018
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Berlich, Ren (author), Stallinga, S. (author)
An approach for designing purely refractive optical elements that generate engineered, multi-order-helix point spread functions (PSFs) with large peak separation for passive, optical depth measurement is presented. The influence of aberrations on the PSF’s rotation angle, which limits the depth retrieval accuracy, is studied numerically and...
journal article 2018
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Langen, Carolyn D (author), Muetzel, Ryan L. (author), Blanken, Laura M E (author), Tiemeier, Henning (author), Verhulst, F.A.H. (author), Niessen, W.J. (author), White, Tonya (author)
Introduction: Typical brain development is characterized by specific patterns of maturation of functional networks. Cortico-cortical connectivity generally increases, whereas subcortico-cortical connections often decrease. Little is known about connectivity changes amongst different subcortical regions in typical development. Methods: This...
journal article 2018
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Delvigne, Frank (author), Takors, Ralf (author), Mudde, R.F. (author), van Gulik, W.M. (author), Noorman, H.J. (author)
Efficient optimization of microbial processes is a critical issue for achieving a number of sustainable development goals, considering the impact of microbial biotechnology in agrofood, environment, biopharmaceutical and chemical industries. Many of these applications require scale-up after proof of concept. However, the behaviour of...
journal article 2017
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Ragesh Kumar, T. P. (author), Hari, S. (author), Damodaran, Krishna K. (author), Ingólfsson, Oddur (author), Hagen, C.W. (author)
We present first experiments on electron beam induced deposition of silacyclohexane (SCH) and dichlorosilacyclohexane (DCSCH) under a focused high-energy electron beam (FEBID). We compare the deposition dynamics observed when growing pillars of high aspect ratio from these compounds and we compare the proximity effect observed for these...
journal article 2017
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Roy, S. (author)
Scattering is the process in which some form of radiation is deviated from its trajectory by a localized non-uniformity it encounters. These non-uniformities, called objects, can be of different material and geometry which determines among many things, mainly, the amount and direction of the scattered radiation. Scatterometry is the branch of...
doctoral thesis 2016
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Gan, S. (author), Wang, S. (author), Chen, Y. (author), Qu, S. (author), Zu, S. (author)
Direct imaging of simultaneous-source (or blended) data, without the need of deblending, requires a precise subsurface velocity model. In this paper, we focus on the velocity analysis of simultaneous-source data using the normal moveout-based velocity picking approach.We demonstrate that it is possible to obtain a precise velocity model directly...
journal article 2016
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Moerland, R.J. (author), Hoogenboom, J.P. (author)
Available data: Complex refractive index of Indium Tin Oxide, http://dx.doi.org/10.4121/uuid:59febf27-a532-4ac9-8ec0-29d4195b2c8c Transparent conductive oxides (TCOs), such as the well-known indium-tin oxide, find widespread use in modern (nano)technological applications because of their unique combination of negligible optical absorption and...
journal article 2016
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Santos, E.M.M. (author), Niessen, W.J. (author), Yoo, A.J. (author), Berkhemer, O.A. (author), Beenen, L.F. (author), Majoie, C.B. (author), Marquering, H.A. (author)
journal article 2016
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Nieuwenhuizen, R.P.J. (author)
Localization microscopy is a powerful tool for circumventing the diffraction limit in fluorescence microscopy. In this technique sparse subsets of the fluorophores labeling a sample are switched on and off, and subsequently localized with a precision on the order of several nanometers. A high resolution image can then be built up from the...
doctoral thesis 2016
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Peruzzini, D. (author), Viti, J. (author), Tortoli, P. (author), Verweij, M.D. (author), De Jong, N. (author), Vos, H.J. (author)
Currently, in medical ultrasound contrast agent (UCA) imaging the second harmonic scattering of the microbubbles is regularly used. This scattering is in competition with the signal that is caused by nonlinear wave propagation in tissue. It was reported that UCA imaging based on the third or higher harmonics, i.e. “superharmonic” imaging, shows...
conference paper 2015
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Verduin, T. (author), Lokhorst, S.R. (author), Kruit, P. (author), Hagen, C.W. (author)
conference paper 2015
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Li, Z. (author), Van Vliet, L.J. (author), Stoker, J. (author), Vos, F.M. (author)
Image registration of medical images in the presence of large intra-image signal fluctuations is a challenging task. Our paper addresses this problem by introducing a new concept based on the structure tensor of the local phase. The local phase is calculated from the monogenic signal representation of the images. The local phase image is hardly...
conference paper 2015
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Latkowski, S. (author), Hansel, A. (author), Bhattacharya, N. (author), De Vries, T. (author), Augustin, L. (author), Williams, K. (author), Smit, M. (author), Bente, E. (author)
journal article 2015
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Schrauwen, J.T.C. (author), Karanasos, A. (author), Van Ditzhuijzen, N.S. (author), Aben, J.P. (author), Van der Steen, A.F.W. (author), Wentzel, J.J. (author), Gijsen, F.J.H. (author)
Wall shear stress (WSS) plays a key role in the onset and progression of atherosclerosis in human coronary arteries. Especially sites with low and oscillating WSS near bifurcations have a higher propensity to develop atherosclerosis. WSS computations in coronary bifurcations can be performed in angiography-based 3D reconstructions. It is...
journal article 2015
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Chakrova, N. (author), Rieger, B. (author), Stallinga, S. (author)
We present a versatile fluorescence microscope, built by complementing a conventional fluorescence microscope with a digital micro-mirror device (DMD) in the illumination path. Arbitrary patterns can be created on the DMD and projected onto the sample. This patterned illumination can be used to improve lateral and axial resolution over the...
conference paper 2015
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Scotuzzi, M. (author), Kamerbeek, M.J. (author), Goodyear, A. (author), Cooke, M. (author), Hagen, C.W. (author)
To demonstrate the possibility of using EBID masks for sub-10 nm pattern transfer into silicon, first experiments were carried out by using 20-40 nm EBID masks, that were etched by different chemistries. It is experimentally verified that recipes based on hydrogen bromide, chlorine and boron trichloride can selectively etch silicon when using 20...
conference paper 2015
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Konijnenberg, A.P. (author), Pereira, S.F. (author)
In this paper we present several algorithms to find pupil functions which give focal fields with different desirable properties, such as a laterally elongated spot, a focal sheet, a spot with increased axial resolution, a lateral array of closely packed spots, and a lateral array of widely spaced diffraction-limited spots. All the algorithms...
journal article 2015
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Petrik, P. (author), Fodor, B. (author), Agocs, E. (author), Kozma, P. (author), Nador, J. (author), Kumar, N. (author), Endres, J. (author), Juhasz, G. (author), Major, C. (author), Pereira, S.F. (author), Lohner, T. (author), Urbach, H.P. (author), Bodermann, B. (author), Fried, M. (author)
conference paper 2015
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Mout, B.M. (author), Wick, M. (author), Bociort, F. (author), Urbach, H.P. (author)
The Wigner Distribution Function (WDF) forms an alternative representation of the optical field. It can be a valuable tool for understanding and classifying optical systems. Furthermore, it possesses properties that make it suitable for optical simulations: both the intensity and the angular spectrum can be easily obtained from the WDF and the...
conference paper 2015
Searched for: department:"Imaging%5C+Physics"
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