Results 191 to 200 of about 8,993 (261)

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Fault-induced detection method for power supply lines in the cutting unit of coal shearer based on PIO-VMD-EDO. [PDF]

Sci Rep
Wang Y, Rong X, Shi H, Liu M, Guo X, Cheng Z, Wang W.   +6 more
europepmc   +1 more source

Increasing of Q Factor of Quasi‐Bound States in the Continuum With Increased Asymmetry Parameter in a Silicon Metasurface Array

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Quasi‐bound states in the continuum (qBICs) can support resonances with high quality (Q) factor. Traditionally, maintaining a high Q factor requires a small α, which brings significant challenges for nanofabrication. In contrast, our study finds an increase in the Q factor with increasing of α in a metasurface array composed of Si blocks with circular ...
Yi Tian, Qin Fu, Shuai Feng, Qingguo Du, Zhengying Li, Fei Xu   +5 more
wiley   +1 more source

Influence of Lens Systematic Errors on Autocollimator Angle Measurement: Theoretical and Experimental Explanations. [PDF]

Sensors (Basel)
Li Y, Zhang S, Chang D, Yu T, Tan J.
europepmc   +1 more source

Sub‐Ensemble Isolation in SERF Magnetometry Enabled by Micrometer‐Scale Polarization Control

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Inter‐channel crosstalk caused by atomic diffusion fundamentally limits the spatial resolution of single‐cell multi‐channel SERF magnetometers. In this work, a spatial‐variant polarization metasurface is employed to achieve effective sub‐ensemble isolation within a single SERF atomic ensemble, which enables the suppression of inter‐channel crosstalk ...
Yuhao Zhang, Zihua Liang, Lu Liu, Jinsheng Hu, Peng Zhou, Gen Hu, Gaopu Hou, Mao Ye   +7 more
wiley   +1 more source

Automated alignment of XFEL nanofocusing mirrors via wavefront optimization. [PDF]

J Synchrotron Radiat
Yamada J, Yamaguchi G, Inoue I, Osaka T, Inubushi Y, Yabashi M.   +5 more
europepmc   +1 more source

Non-Interventional Study to Evaluate the Effect of Non-Diffractive Extended Depth of Focus Intraocular Lens Centration and Tilt on Visual Performance. [PDF]

Clin Ophthalmol
Shetty R, Chokshi A, Paauw M, Francis J, Freidl K, Orey D, Egli A, Keeton H, Click K, Schaffner H, Wagner I, Hasan A, Gayasaddin O, Lott M, Goldfaden R.   +14 more
europepmc   +1 more source

Prospective study analyzing wavefront-guided LASIK and PRK surgery performed by cornea fellows in training. [PDF]

J Cataract Refract Surg
Chung ME, Manche EE.
europepmc   +1 more source

Normative Data of Higher-Order Aberrations in Healthy Caucasian Eyes and Their Correlation with Age, Gender, and Spherical Equivalent. [PDF]

Clin Ophthalmol
Son HS, Labuz G, Blöck L, Savini G, Coutinho CP, Fernández J, Augustin VA, Auffarth GU.   +7 more
europepmc   +1 more source

Beam manipulation for terahertz communications. [PDF]

Commun Eng
Li M, Jornet JM, Mittleman DM, Han C.
europepmc   +1 more source