Results 171 to 180 of about 26,873 (277)

Wavefront‐Like LAM Method: A Case Report of Residual Potential Identification Using Local Voltage Derived From Late Annotation Mapping

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
The Wavefront‐like LAM method preserves wavefront‐based timing consistency while enabling quantitative local voltage evaluation. This method improves differentiation between low‐voltage and no‐voltage regions and suggests that residual potentials appearing isolated on conventional voltage mapping can be identified.
Tomoyoshi Morioku, Yasuyuki Egami, Yasuharu Matsunaga‐Lee, Masamichi Yano, Masami Nishino   +4 more
wiley   +1 more source

Large-Dynamic-Range Ocular Aberration Measurement Based on Deep Learning with a Shack-Hartmann Wavefront Sensor. [PDF]

Sensors (Basel)
Zhang H, Zhao J, Chen H, Zhang Z, Yin C, Wang S.   +5 more
europepmc   +1 more source

Centroid error due to non-uniform lenslet illumination in the Shack-Hartmann wavefront sensor. [PDF]

Opt Lett, 2019
Akondi V, Steven S, Dubra A.
europepmc   +1 more source

One‐Step Fabrication of Non‐Ablative Microstructures for Efficient Second Harmonic Generation on LiNbO3 Thin Film

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This study presents a novel one‐step femtosecond laser modification technique for fabricating high‐quality periodic metasurfaces on lithium niobate thin films without surface damage and scattering centers. Under oblique incidence at 1030 nm, a 4.75‐fold enhancement in second‐harmonic generation efficiency is achieved through complementary mechanisms ...
Feifei Wang, Yuntao Lang, Changji Pan, Yang Lu, Xiaozhe Chen, Rongke Gao, Zhe Peng, Liandong Yu   +7 more
wiley   +1 more source

New achievements in orbital angular momentum beam characterization using a Hartmann wavefront sensor and the Kirkpatrick-Baez active optical system KAOS. [PDF]

J Synchrotron Radiat
Novinec L, Pancaldi M, Capotondi F, De Ninno G, Guzzi F, Kourousias G, Pedersoli E, Ressel B, Rösner B, Simoncig A, Zangrando M, Manfredda M.   +11 more
europepmc   +1 more source

Large dynamic range autorefraction with a low-cost diffuser wavefront sensor. [PDF]

Biomed Opt Express, 2019
McKay GN, Mahmood F, Durr NJ.
europepmc   +1 more source

Interaction of Structured Light With Nanostructured Matter

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Structured light–matter interactions at the nanoscale remain poorly understood. We reveal a symmetry‐matched mechanism governing orbital‐angular‐momentum‐dependent extinction in gold nanodisk oligomers. Tailored diffractive optical elements generate flower‐like beams whose rotational symmetry dictates absorption. Experiments and a semi‐analytical model
Noah Apostolico, Leander Siegle, Luca Schmid, Tim‐Dominik Gómez, Julian Schwab, Mario Hentschel, Harald Giessen   +6 more
wiley   +1 more source

Spectropolarimetric Holographic Multiplexing Metasurface With Super‐High Capacity Empowered by Mechanical Rotation

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Mechanically reconfigurable metasurfaces enable high‐capacity optical storage and holography due to low cost/complexity. A differentiable inverse design framework maps meta‐atom geometries to multichannel optical responses via deep neural networks. Rotatable cascaded metasurfaces optimized through this pipeline achieve pixel‐level holography with 288 ...
Ting Ma, Xianjin Liu, Qiwen Bao, Bolun Zhang, Jun‐Jun Xiao   +4 more
wiley   +1 more source

Wavefront Selective Modal Excitations for Optimally Informative Sensing in Fano‐Resonant Metasurfaces

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Structured illuminations can unlock hidden quasi‐BIC modes in Fano‐resonant metasurfaces, enhancing the sensitivity to nanoscale perturbations. By analyzing the eigenmode spectrum of a dielectric metasurface and applying information theory, tailored wavefronts can be engineered that selectively excite otherwise inaccessible modes.
Nick Feldman, Nelson de Gaay Fortman, Arie J. den Boef, Lyubov V. Amitonova, A. Femius Koenderink   +4 more
wiley   +1 more source

Terahertz Encryption With a Polarization‐Sensitive Metasurface

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
We propose a dual‐functional terahertz encryption metasurface that enables independent information retrieval in both the near field and the far field within a single device. In the near field, polarization‐selective amplitude modulation reveals textual patterns, whereas in the far field, phase engineering encodes multiple digital data in focal‐spot ...
Yixuan He, Huan Zhao, Tong Nan, Xinke Wang, Yan Zhang   +4 more
wiley   +1 more source