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Showing 1 to 12 of 94 entries
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Quantum Confinement Regimes in CdTe Nanocrystals Probed by Single Dot Spectroscopy: From Strong Confinement to the Bulk Limit.

ACS nano

Tilchin J, Rabouw FT, Isarov M, Vaxenburg R, Van Dijk-Moes RJ, Lifshitz E, Vanmaekelbergh D.
PMID: 26181051
ACS Nano. 2015 Aug 25;9(8):7840-5. doi: 10.1021/acsnano.5b02597. Epub 2015 Jul 22.

Sufficiently large semiconductor nanocrystals are a useful model system to characterize bulk-like excitons, with the electron and hole bound predominantly by Coulomb interaction. We present optical characterization of excitons in individual giant CdTe nanocrystals with diameters up to 25.5...

Size-dependent energy levels of InSb quantum dots measured by scanning tunneling spectroscopy.

ACS nano

Wang T, Vaxenburg R, Liu W, Rupich SM, Lifshitz E, Efros AL, Talapin DV, Sibener SJ.
PMID: 25531244
ACS Nano. 2015 Jan 27;9(1):725-32. doi: 10.1021/nn5061805. Epub 2014 Dec 22.

The electronic structure of single InSb quantum dots (QDs) with diameters between 3 and 7 nm was investigated using atomic force microscopy (AFM) and scanning tunneling spectroscopy (STS). In this size regime, InSb QDs show strong quantum confinement effects...

The ASTRA Toolbox: A platform for advanced algorithm development in electron tomography.

Ultramicroscopy

van Aarle W, Palenstijn WJ, De Beenhouwer J, Altantzis T, Bals S, Batenburg KJ, Sijbers J.
PMID: 26057688
Ultramicroscopy. 2015 Oct;157:35-47. doi: 10.1016/j.ultramic.2015.05.002. Epub 2015 May 06.

We present the ASTRA Toolbox as an open platform for 3D image reconstruction in tomography. Most of the software tools that are currently used in electron tomography offer limited flexibility with respect to the geometrical parameters of the acquisition...

Rapid low dose electron tomography using a direct electron detection camera.

Scientific reports

Migunov V, Ryll H, Zhuge X, Simson M, Strüder L, Batenburg KJ, Houben L, Dunin-Borkowski RE.
PMID: 26434767
Sci Rep. 2015 Oct 05;5:14516. doi: 10.1038/srep14516.

We demonstrate the ability to record a tomographic tilt series containing 3487 images in only 3.5 s by using a direct electron detector in a transmission electron microscope. The electron dose is lower by at least one order of...

3-D reconstruction of the atomic positions in a simulated gold nanocrystal based on discrete tomography: prospects of atomic resolution electron tomography.

Ultramicroscopy

Jinschek JR, Batenburg KJ, Calderon HA, Kilaas R, Radmilovic V, Kisielowski C.
PMID: 18082327
Ultramicroscopy. 2008 May;108(6):589-604. doi: 10.1016/j.ultramic.2007.10.002. Epub 2007 Oct 24.

A novel reconstruction procedure is proposed to achieve atomic resolution in electron tomography. The method exploits the fact that crystals are discrete assemblies of atoms (atomicity). This constraint enables us to obtain a three-dimensional (3-D) reconstruction of test structures...

Three-dimensional atomic imaging of colloidal core-shell nanocrystals.

Nano letters

Bals S, Casavola M, van Huis MA, Van Aert S, Batenburg KJ, Van Tendeloo G, Vanmaekelbergh D.
PMID: 21786766
Nano Lett. 2011 Aug 10;11(8):3420-4. doi: 10.1021/nl201826e. Epub 2011 Jul 27.

Colloidal core-shell semiconductor nanocrystals form an important class of optoelectronic materials, in which the exciton wave functions can be tailored by the atomic configuration of the core, the interfacial layers, and the shell. Here, we provide a trustful 3D...

Optimizing experimental parameters for the projection requirement in HAADF-STEM tomography.

Ultramicroscopy

Aveyard R, Zhong Z, Batenburg KJ, Rieger B.
PMID: 28314155
Ultramicroscopy. 2017 Jun;177:84-90. doi: 10.1016/j.ultramic.2017.03.009. Epub 2017 Mar 07.

Tomographic reconstruction algorithms offer a means by which a tilt-series of transmission images can be combined to yield a three dimensional model of the specimen. Conventional reconstruction algorithms assume that the measured signal is a linear projection of some...

Tomographic approach for the quantitative scene reconstruction from light field images.

Optics express

Viganò N, Der Sarkissian H, Herzog C, de la Rochefoucauld O, van Liere R, Batenburg KJ.
PMID: 30184917
Opt Express. 2018 Sep 03;26(18):22574-22602. doi: 10.1364/OE.26.022574.

Current computational methods for light field photography model the ray-tracing geometry inside the plenoptic camera. This representation of the problem, and some common approximations, can lead to errors in the estimation of object sizes and positions. We propose a...

Registration-based multi-orientation tomography.

Optics express

Kostenko A, Andriiashen V, Batenburg KJ.
PMID: 30470067
Opt Express. 2018 Oct 29;26(22):28982-28995. doi: 10.1364/OE.26.028982.

We propose a combination of an experimental approach and a reconstruction technique that leads to reduction of artefacts in X-ray computer tomography of strongly attenuating objects. Through fully automatic data alignment, data generated in multiple experiments with varying object...

Practice-Level Association between Antibiotic Prescribing and Resistance: An Observational Study in Primary Care.

Antibiotics (Basel, Switzerland)

Batenburg D, Verheij T, Van't Veen A, van der Velden A.
PMID: 32752214
Antibiotics (Basel). 2020 Aug 01;9(8). doi: 10.3390/antibiotics9080470.

A direct relation between antibiotic use and resistance has been shown at country level. We aim to investigate the association between antibiotic prescribing for patients from individual Dutch primary care practices and antibiotic resistance of bacterial isolates from routinely...

Advanced light-field refocusing through tomographic modeling of the photographed scene.

Optics express

Viganò N, Gil PM, Herzog C, de la Rochefoucauld O, van Liere R, Batenburg KJ.
PMID: 31052612
Opt Express. 2019 Mar 18;27(6):7834-7856. doi: 10.1364/OE.27.007834.

Recently we have shown that light-field photography images can be interpreted as limited-angle cone-beam tomography acquisitions. Here, we use this property to develop a direct-space tomographic refocusing formulation that allows one to refocus both unfocused and focused light-field images....

Task-Driven Learned Hyperspectral Data Reduction Using End-to-End Supervised Deep Learning.

Journal of imaging

Zeegers MT, Pelt DM, van Leeuwen T, van Liere R, Batenburg KJ.
PMID: 34460529
J Imaging. 2020 Dec 02;6(12). doi: 10.3390/jimaging6120132.

An important challenge in hyperspectral imaging tasks is to cope with the large number of spectral bins. Common spectral data reduction methods do not take prior knowledge about the task into account. Consequently, sparsely occurring features that may be...

Showing 1 to 12 of 94 entries