Results 151 to 160 of about 8,993 (261)

Ultrafast ultrasound shear wave elastography: a novel approach for assessing myocardial stiffening in congenital aortic stenosis. [PDF]

Open Heart
Zwaan RR, Keuning ZA, Loff Barreto B, Bowen DJ, van Dalen BM, Hirsch A, Roos-Hesselink JW, Vos HJ, van den Bosch AE.   +8 more
europepmc   +1 more source

Ultra Compact and Broadband Fiber Facet Graphene Oxide Microlens Array Fabricated on a Beam‐Expanding Fiber Facet Using Femtosecond Laser Direct Writing Technique

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A 400 nm graphene oxide film on a beam‐expanding fiber facet is patterned by femtosecond laser direct writing into a 19‐lens microlens array. The device simultaneously splits a single input beam into multiple 0.67–0.74 NA focus spots with a broadband response from 850 to 1550 nm.
Xiaoke Chen, Lin Ma, Linbin Bai, Tianqi Cheng, Zuyuan He   +4 more
wiley   +1 more source

Effect of Subepithelial Pterygium Pedicle Length on Anterior Corneal Keratometry and Wavefront Aberrations. [PDF]

Korean J Ophthalmol
Jang E, Lee SH, Kim KW.
europepmc   +1 more source

End‐to‐End Deep Learning Framework for Freeform Metasurfaces via Non‐Uniform Rational B‐Splines Meta‐Atoms

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This work presents a NURBS‐enabled metasurface design framework that combines freeform meta‐atom parameterization with Transformer‐based deep learning. The unified mathematical representation expands geometric degrees of freedom while enabling efficient optical‐response prediction and inverse design.
Kaipeng Liu, Junliang Jia, Kun Li, Yuanjian Wan, Runlin Zhou, Xuyang Chen, Chao Wang, Zhixiang Huang, Jiaxin Li, Gang Gao, Pei Zhang, Longqiu Li   +11 more
wiley   +1 more source

Decoupling Backward Scattering Control and Forward Beamformed Communication in a Shared‐Aperture Retro‐Reflective/Transmissive Metasurface

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
Conceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Shulei Zhang, Ruichao Zhu, Yuxiang Jia, Fan Wu, Xinqi Cai, Zhihui Zhang, Dan Liu, Yuxiao Guo, Jiafu Wang   +8 more
wiley   +1 more source

Visual outcomes in patients with bilateral early to moderate primary open-angle glaucoma following wavefront-shaping partial-range of field-extend intraocular lens implantation. [PDF]

Br J Ophthalmol
Guarro M, Goñi Guarro I, López E, Ruiz S, Vázquez M, Sararols L, Ní Dhubhghaill S, Biarnés M.   +7 more
europepmc   +1 more source

Intrinsic Focus‐Like Light Concentration From Anti‐Resonant Hollow‐Core Fibers

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
The fundamental mode of hollow‐core waveguides is shown to produce intrinsic focus‐like light concentration in free space without external optics. Combined experiments and simulations reveal that this behavior originates from the non‐Gaussian nature of leaky modes, establishing a new mechanism for lensless beam shaping and compact optical interfacing ...
Shahrzad Hosseinabadi, Torsten Wieduwilt, Michael H. Frosz, Markus A. Schmidt   +3 more
wiley   +1 more source

Focusing on color: How the eye chooses which wavelength to see best. [PDF]

Sci Adv
Chin BM, Banks MS, Nankivil D, Roorda A, Cooper EA.   +4 more
europepmc   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

Advanced Science, Volume 13, Issue 43, 3 August 2026.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang, Hanjie Xiao, Xue Jiang, Dean Ta   +3 more
wiley   +1 more source

Local-nonlocal assisted multifunctional photonic crystals. [PDF]

Light Sci Appl
Lv W, Qin H, Shi X, Shi F, Mu X, Zhou Z, Qin J, Li B, Qiu CW, Song Q.   +9 more
europepmc   +1 more source