Results 271 to 280 of about 13,853 (310)

Is the Deep Martian Mantle Heterogeneous? A Reappraisal of Seismological Evidences

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract It has been proposed that the deep Martian mantle contains distributed heterogeneities preserved since the accretion of the planet. This result relies on a multiple‐scattering interpretation of frequency‐dependent arrival times of P $P$‐waves detected in the spectrograms of teleseismic Martian events.
L. Margerin
wiley   +1 more source

Light and Sound Driven Wavefront Shaping and Imaging through Scattering Tissue

Fei Xia, Ivo T. Leite, Shuquan Xiao, Nikita Kaydanov, Frederik Goerlitz, Sylvain Gigan, Robert Prevedel   +6 more
openalex   +1 more source

Immediate Sequential Bilateral Implantation With Mini-Monovision Of A Novel Wavefront-Shaping Presbyopia Correcting Intraocular Lens In Eyes With Ocular Co-Morbidity

Mor M. Dickman, Alexander H. Rulo, Jan Willem van der Linden, Ruth Lapid-Gortzak   +3 more
openalex   +1 more source

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Guidestar-free wavefront shaping

Frontiers in Optics / Laser Science, 2020
We present a new concept, image-guided wavefront-shaping, for non-invasive, widefield, incoherent imaging through highly scattering layers, without illumination control. We use image quality assessment as a feedback for wavefront correction.
Tomer Yeminy, Ori Katz
openaire   +1 more source

Resonant wavefront-shaping metasurfaces

High Contrast Metastructures X, 2021
Diffractive photonic devices manipulate light via local and nonlocal optical modes. Local devices, such as metasurfaces, can shape a wavefront at multiple selected wavelengths, but inevitably modify light across the spectrum; nonlocal devices, such as grating filters, offer great frequency selectivity but limited spatial control.
openaire   +1 more source

Tailoring complex wavefront of scattered light via wavefront shaping

Journal of Optics, 2020
Tailoring complex wavefront is crucial for controlling the propagation and interference of light, but is quite challenging for optical systems that suffers random scattering. Here, we show that wavefront shaping can be used for tailoring complex wavefront on the target plane with phase-only control on the incident plane.
openaire   +1 more source

Learning Optimal Wavefront Shaping for Multi-Channel Imaging

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021
Fast acquisition of depth information is crucial for accurate 3D tracking of moving objects. Snapshot depth sensing can be achieved by wavefront coding, in which the point-spread function (PSF) is engineered to vary distinctively with scene depth by altering the detection optics.
Elias Nehme, Boris Ferdman, Lucien E. Weiss, Tal Naor, Daniel Freedman, Tomer Michaeli, Yoav Shechtman   +6 more
openaire   +3 more sources

Active wavefront shaping and analysis

SPIE Proceedings, 2005
Active and adaptive optics are becoming more important in the field of beam shaping and wave front analysis. One of the main reasons for the progress and recent activities in active optics is the availability of new active elements like deformable mirrors, micro mirrors and liquid crystals.
Hans J. Tiziani, Jan Liesener, Christof Pruss, Stephan Reichelt, L. Seifert   +4 more
openaire   +1 more source

Multicolor Wavefront Shaping

2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
We do multicolor wavefront shaping with a digital micromirror device (DMD). DMDs are popular shaping devices with superior modulation rates. However, DMDs have angular dispersion, hindering broadband operation. Therefore, we developed a new Lee-holography technique; the same setup can now be used for different wavelengths without having to change or ...
Mulder, L. (Bert), Hubert, Maël, Tromp, Tamara A.M., Lagendijk, Ad, Vos, Willem L.   +4 more
openaire   +3 more sources

Wavefront shaping for intraocular scattering correction

OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021
In this work we propose a non-invasive alternative to cataracts surgery by means of manipulating the wavefront of the incident light. We show a two-fold improvement in the Strehl ratio of the ocular Point Spread Function.
Alba Maria Paniagua-Diaz, Pablo Artal
openaire   +1 more source