Results 101 to 110 of about 4,958 (161)

Isolated steady solutions of the 3D Euler equations. [PDF]

Proc Natl Acad Sci U S A
Enciso A, Kepplinger W, Peralta-Salas D.
europepmc   +1 more source

Excitation of Quasi‐Bound States in the Continuum With Focused Radially Polarized Beams

Advanced Optical Materials, EarlyView.
This work presents an innovative strategy for exciting symmetry‐protected quasi‐bound states in the continuum in periodic arrays of nanostructures using focused radially polarized light beams. Compared to excitation with a tilted plane wave, this approach can achieve both higher quality factors and stronger optical responses.
Luis Cerdán, Juan R. Deop‐Ruano, Miguel A. Martín, Rosario Martínez‐Herrero, Alejandro Manjavacas   +4 more
wiley   +1 more source

Engineering Thermal Emission with Enhanced Emissivity and Quality Factor Using Bound States in the Continuum and Electromagnetically Induced Absorption

Advanced Optical Materials, EarlyView.
A metal‐based thermal metasurface supporting bound states in the continuum is demonstrated and experimentally shown to achieve a record‐high quality factor of 202 and high emissivity of 0.82. The design offers thermally stable, narrowband mid‐infrared emission, making it ideal for high‐precision gas sensing applications.
Guodong Zhu, Ikjun Hong, Kewei Li, Theodore Anyika, Maxwell T. Ugwu, J. Ryan Nolen, Mingze He, Joshua D. Caldwell, Justus C. Ndukaife   +8 more
wiley   +1 more source

From disorganized data to emergent dynamic models: Questionnaires to partial differential equations. [PDF]

PNAS Nexus
Sroczynski DW, Kemeth FP, Georgiou AS, Coifman RR, Kevrekidis IG.   +4 more
europepmc   +1 more source

Miniaturized Single‐Photon Level Computational Complex Field Imaging System via Meta‐Optics

Advanced Optical Materials, EarlyView.
8192 Hadamard mask patterns generated by the digital micromirror device (DMD) are projected onto a micro target sample via a metalens. The corresponding modulated intensity spectrum encoded with the spatial information of the target is then captured by a photomultiplier tube (PMT) at the Fourier plane to recover both the amplitude and phase images ...
Yuhao Wang, Qihao Jin, Chongwu Shao, Qiaoshuang Zhang, Judith K. Hohmann, Alban Muslija, Shijian Li, Zhigang Li, Uli Lemmer, Xuri Yao, Qing Zhao   +10 more
wiley   +1 more source

Riemannian geometry for efficient analysis of protein dynamics data. [PDF]

Proc Natl Acad Sci U S A
Diepeveen W, Esteve-Yagüe C, Lellmann J, Öktem O, Schönlieb CB.   +4 more
europepmc   +1 more source

Dark‐State Guided‐Mode Resonance Sensors: Engineering Miniature Sensing Platforms

Advanced Optical Materials, EarlyView.
This research introduces compact guided‐mode resonance sensing using Gaussian‐beam‐induced symmetry breaking to excite dark states. The method generates high‐quality resonance signals in a small area, demonstrating a sensor with 128 micro‐cells and 200 nm RIU−1 sensitivity, showing potential for lab‐on‐chip and biosensing applications.
Yeong Hwan Ko, Pawarat Bootpakdeetam, Robert Magnusson   +2 more
wiley   +1 more source

Width Stability of Rotationally Symmetric Metrics. [PDF]

J Geom Anal
Stufflebeam H, Sweeney P.
europepmc   +1 more source

Directionally Asymmetric Holographic Imaging for Arbitrary Polarization States Using Janus Metasurfaces

Advanced Optical Materials, EarlyView.
We demonstrate single‐layer titanium dioxide Janus metasurface holograms that achieve directionally asymmetric imaging under forward and backward illumination. By integrating the Dammann grating principle with precise phase control, our design produces high‐fidelity holographic images for arbitrary polarization states at 532 nm, simplifying fabrication,
Yu‐Chuan Chang, Chang‐Yi Lin, Huan‐Teng Su, Yun‐Chien Wu, Chih‐Yao Hsu, Shu‐Ming Chang, Yao‐Wei Huang   +6 more
wiley   +1 more source