Results 171 to 180 of about 36,989 (273)

Quasi‐BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit

Small, EarlyView.
An analytical expression is developed to relate second‐harmonic generation to both the resonance Q factor and absorptance. Simulations and experiments on a dual‐resonance 3R‐MoS2 metasurface validate the formula, showing that absorptance engineering provides an effective route to enhance SHG beyond conventional Q‐only design.
Wenkai Yang, Hao Qin, Boqing Liu, Chuanyu Wang, Yilin Tang, Jiri Janousek, Xueqian Sun, Alex Y. Song, Yuerui Lu   +8 more
wiley   +1 more source

A compact metasurface-based tri-band MIMO antenna with minimalist decoupling for multi-standard wireless devices. [PDF]

Sci Rep
Gu Z, Guo M, Li S.
europepmc   +1 more source

Waveguide‐Based Four‐Channel Crosstalk‐Free Metahologram Multiplexed by Diffraction Orders

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
A diffraction‐order‐multiplexed, four‐channel metahologram integrates a flat glass waveguide and an array of titanium dioxide nanopillars to realize crosstalk‐free holographic projection. Light undergoes total internal reflection within the waveguide and gets out‐coupled by diffraction from the nanopillar array.
Zhiyu Ning, Zeyang Liu, Deqian Zheng, Niu Liu, Hao Gao, Tianzhang Peng, Ziqian Xi, Xinliang Zhang, Cheng Zhang   +8 more
wiley   +1 more source

Ultra-compact canvas-type acoustic metasurfaces for uniform sound field in indoor environments. [PDF]

Sci Rep
Choi E, Kim J, Jeon W.
europepmc   +1 more source

Harnessing Interfacial Field Localization in Hexagonal GaP Mie Resonators

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Сharacterization of Mie modes in self‐assembled GaP nanowires grown by MBE in vertical and horizontal configurations. The hexagonal cross‐section suppresses higher‐order modes while preserving dominant low‐order modes with spectral shifts. Simulations and dark‐field spectroscopy confirm the diameter‐dependent tunability.
Aleksandra A. Kutuzova, Alexey Kuznetsov, Valeriy M. Kondratev, Vladimir V. Fedorov, Ivan S. Mukhin, Aleksandr S. Slavich, Aleksey V. Arsenin, Alexey D. Bolshakov, Mikhail V. Rybin   +8 more
wiley   +1 more source

Enhancement of in vivo 7T magnetic resonance neuroimaging via flexible metasurfaces. [PDF]

Npj Imaging
Jacobs PS, Wilson N, Brink W, Detre J, Elliott M, Reddy R.   +5 more
europepmc   +1 more source

Interference‐Induced Cavity Resonances and Imaginary Rabi Splitting

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Coupling of a two‐level emitter to (a, b) a single‐mode resonance with a Lorentzian spectral density, and (c, d) a two‐mode cavity with a more complex spectral density. This work reveals a new polaritonic regime beyond the single‐mode description, emerging from emitter interaction with the interference‐induced resonance associated with the Fano ...
Anael Ben‐Asher, Antonio I. Fernández‐Domínguez, Johannes Feist   +2 more
wiley   +1 more source

Infrared Metasurface with a Top Cross-Square Nanobrick Array for Realizing a Highly Efficient Lightwave Absorption Across a Broad Wavelength Region. [PDF]

Materials (Basel)
Chen H, Ji W, Zhang C, Shao X, Yao X, You F, Wang H, Zhang X.   +7 more
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

Low-profile metasurface-backed wideband antenna array for mm-wave applications. [PDF]

Sci Rep
Kiani SH, Rafique U, Shoaib N, Abbasi MI, Elmannai H, Ibrahim MI, Dalarsson M.   +6 more
europepmc   +1 more source