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Showing 1 to 9 of 9 entries
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Segmented bimorph mirrors for adaptive optics: segment design and experiment.

Applied optics

Bastaits R, Alaluf D, Horodinca M, Romanescu I, Burda I, Martic G, Rodrigues G, Preumont A.
PMID: 25322364
Appl Opt. 2014 Oct 10;53(29):6635-42. doi: 10.1364/AO.53.006635.

We discuss the concept of lightweight segmented bimorph mirrors for adaptive optics. The segment consists of a monocrystal silicon substrate actuated by an array of in-plane piezoceramic (PZT) actuators with honeycomb electrodes. We focus on technological aspects of the...

Segmented bimorph mirrors for adaptive optics: morphing strategy.

Applied optics

Bastaits R, Alaluf D, Belloni E, Rodrigues G, Preumont A.
PMID: 25090311
Appl Opt. 2014 Aug 01;53(22):4825-32. doi: 10.1364/AO.53.004825.

This paper discusses the concept of a light weight segmented bimorph mirror for adaptive optics. It focuses on the morphing strategy and addresses the ill-conditioning of the Jacobian of the segments, which are partly outside the optical pupil. Two...

The broad role of Nkx3.2 in the development of the zebrafish axial skeleton.

PloS one

Waldmann L, Leyhr J, Zhang H, Öhman-Mägi C, Allalou A, Haitina T.
PMID: 34411150
PLoS One. 2021 Aug 19;16(8):e0255953. doi: 10.1371/journal.pone.0255953. eCollection 2021.

The transcription factor Nkx3.2 (Bapx1) is an important chondrocyte maturation inhibitor. Previous Nkx3.2 knockdown and overexpression studies in non-mammalian gnathostomes have focused on its role in primary jaw joint development, while the function of this gene in broader skeletal...

The role of Gdf5 in the development of the zebrafish fin endoskeleton.

Developmental dynamics : an official publication of the American Association of Anatomists

Waldmann L, Leyhr J, Zhang H, Allalou A, Öhman-Mägi C, Haitina T.
PMID: 34242444
Dev Dyn. 2021 Jul 09; doi: 10.1002/dvdy.399. Epub 2021 Jul 09.

BACKGROUND: The development of the vertebrate limb skeleton requires a complex interaction of multiple factors to facilitate the correct shaping and positioning of bones and joints. Growth and differentiation factor 5 (Gdf5) is involved in patterning appendicular skeletal elements...

Damage Detection in Active Suspension Bridges: An Experimental Investigation.

Sensors (Basel, Switzerland)

Meng F, Mokrani B, Alaluf D, Yu J, Preumont A.
PMID: 30205525
Sensors (Basel). 2018 Sep 07;18(9). doi: 10.3390/s18093002.

This paper considers a Hilbert marginal spectrum-based approach to health monitoring of active suspension bridge hangers. The paper proposes to takes advantage of the presence of active cables and use them as an excitation mean of the bridge, while...

Unimorph mirror for adaptive optics in space telescopes.

Applied optics

Alaluf D, Bastaits R, Wang K, Horodinca M, Martic G, Mokrani B, Preumont A.
PMID: 29791324
Appl Opt. 2018 May 10;57(14):3629-3638. doi: 10.1364/AO.57.003629.

This paper presents a unimorph deformable mirror intended to be used as secondary corrector in space telescopes. The deformable mirror consists of a single-crystal silicon wafer (76.2 mm diameter, 500 μm thickness) covered with an optical coating on the...

Publisher Correction: DeepSTORM3D: dense 3D localization microscopy and PSF design by deep learning.

Nature methods

Nehme E, Freedman D, Gordon R, Ferdman B, Weiss LE, Alalouf O, Naor T, Orange R, Michaeli T, Shechtman Y.
PMID: 32591761
Nat Methods. 2020 Jul;17(7):749. doi: 10.1038/s41592-020-0910-0.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

VIPR: vectorial implementation of phase retrieval for fast and accurate microscopic pixel-wise pupil estimation.

Optics express

Ferdman B, Nehme E, Weiss LE, Orange R, Alalouf O, Shechtman Y.
PMID: 32225609
Opt Express. 2020 Mar 30;28(7):10179-10198. doi: 10.1364/OE.388248.

In microscopy, proper modeling of the image formation has a substantial effect on the precision and accuracy in localization experiments and facilitates the correction of aberrations in adaptive optics experiments. The observed images are subject to polarization effects, refractive...

zOPT: an open source optical projection tomography system and methods for rapid 3D zebrafish imaging.

Biomedical optics express

Zhang H, Waldmann L, Manuel R, Boije H, Haitina T, Allalou A.
PMID: 32923043
Biomed Opt Express. 2020 Jul 15;11(8):4290-4305. doi: 10.1364/BOE.393519. eCollection 2020 Aug 01.

Optical projection tomography (OPT) is a 3D imaging alternative to conventional microscopy which allows imaging of millimeter-sized object with isotropic micrometer resolution. The zebrafish is an established model organism and an important tool used in genetic and chemical screening....

Showing 1 to 9 of 9 entries