Results 211 to 220 of about 11,788 (237)

Nonlinear mirror with all-dielectric metasurface

2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017
A nonlinear mirror based on the nonlinear optical frequency conversion has been established as a universal tool for ultrafast control of laser dynamics [1]. However, traditional approaches are based on bulk crystals posing major difficulties on phase matching and alignment. Ultra-thin nonlinear mirrors based on all-dielectric metasurfaces would offer a
Lei Wang, Lei Xu, Sergey S. Kruk, Daria A. Smirnova, Dragomir Neshev, Yuri Kivshar   +5 more
openaire   +1 more source

Upconversion enhancement by a dual-resonance all-dielectric metasurface

Nanoscale, 2019
A dual-resonance all-dielectric metasurface was demonstrated to enhance the signals emitted by upconversion nanoparticles (NaYF4:Yb/Tm).
Chensheng Gong, Wen Liu, Nan He, Hongguang Dong, Yi Jin, Sailing He   +5 more
openaire   +2 more sources

Strong terahertz absorption in all-dielectric Huygens’ metasurfaces

Nanotechnology, 2016
We propose an all dielectric metamaterial that acts as a perfect terahertz absorber without a ground plane. The unit cell consists of a dielectric cylinder embedded in a low index material. In order to achieve near-perfect terahertz absorption (99.5%) we employ impedance matching of the electric and magnetic resonances within the cylinders of the ...
Michael A, Cole, David A, Powell, Ilya V, Shadrivov   +2 more
openaire   +2 more sources

Accelerating beam generation via all-dielectric metasurfaces

Metamaterials XII, 2019
All-dielectric metasurfaces are unique component to control optical wavefront with high transmission or reflection coefficient. Recently, accelerating beam, which propagates along curved arbitrary trajectories, has been realized with conventional diffractive optical elements (DOE).
Yılmaz, Nazmi, Bağcı, Fehim Taha, Özer, Ahmet, Kurt, Hamza   +3 more
openaire   +3 more sources

All-dielectric metasurface for optical focusing

2015
We propose the design of a dielectric flat lens for visible wavelengths, capable of efficiently focus the incident field at a given distance. Our approach relies on the recently proposed exploitation of high-index dielectric resonators with spectrally overlapping electric and magnetic dipole resonances of equal strength.
Pisano, E., Silvestri, F., Gerini, G., Lancellotti, V., Galdi, V.   +4 more
openaire   +2 more sources

Highly efficient tunable terahertz all-dielectric metasurface absorber based on high mode

Advanced Composites and Hybrid Materials, 2023
Chuwen Lan, Hassan Algadi
exaly  

All-dielectric metasurfaces for imaging applications

High Contrast Metastructures XI, 2022
Andrea Alù, Adam Overvig
openaire   +1 more source

Phase Interrogation Sensor Based on All-Dielectric BIC Metasurface

Nano Letters, 2023
Zhenchao Liu, Yuwei Sun, Sailing He
exaly  

Toroidal dipole bound states in the continuum in all-dielectric metasurface for high-performance refractive index and temperature sensing

Applied Surface Science, 2023
Maojin Yun
exaly  

All-Dielectric Metasurface for Sensing Microcystin-LR

Electronics (Switzerland), 2021
Pavel Belov, Ravindra Kumar Sinha, Weiping Qian   +2 more
exaly