All-dielectric metasurfacesgradient phase discontinuityvortex beamanomalous refractionwave-focusingIn recent years, metasurfaces have widely been studied due to their ability to offer a spatially varying phase response, low losses, ultrathin size, and easy fabrication. In this paper, a gradient phase ...
Silicon-based metasurfaces exhibit significant potential for manipulating optical wavefronts across the visible and infrared wavelength ranges due to their compact size and compatibility with CMOS technology. However, previous research has predominantly focused on developing either monofunctional devices or swi...
All-dielectric χCarlo Gigli, Giuseppe Leo Laboratoire MPQ, Université de Paris and CNRS, 10 rue A. Domon et L. Duquet, Paris 75013, FranceOpto-Electronic Advances, 2022年4月13日
Sinclair, I. Staude, and I. Brener, "An all-dielectric metasurface as a broadband optical frequency mixer," Nature Communications, vol. 9, no. 1, pp. 1-6, 2018.S. Liu et al., "An all-dielectric metasurface as a broadband optical frequency mixer," Nat. Commun. 9, 2507 (2018)....
All-dielectric ultrathin conformal metasurfaces: lensing and cloaking applications at 532 nm wavelength. Sci. Rep. 6, 38440 (2016).J. Cheng, S. Jafar-Zanjani, and H. Mosallaei, "All-dielectric ultrathin conformal metasurfaces: lensing and cloaking applications at 532 nm wavelength," Sci. ...
In Figure 1a, we summarize the complex refractive indices of some typical dielectric materials for constructing all-dielectric metasurfaces (ADMs). These materials have high values of the real part of the complex refractive index, providing a great refractive-index contrast between the dielectric ...
In this study, a T-shaped nanohole all-dielectric metasurface structure is proposed based on the unique electromagnetic properties of all-dielectric metasurfaces, and the fundamental reason of its coupled state and the theoretical basis of BIC excitation are deeply investigated based on the theory of...
All-dielectric metasurfaces have great potential as highly sensitive refractometric sensors relying on their spectral shifts because of an extensive range of design flexibilities and their smaller absorption losses than plasmonic platforms. However, simu
Fig. 2: The schematic and the numerical simulation of Si metasurfaces. Full size image Fig. 3: The experimentally recorded structural color. Full size image Fig. 4: The resolution test of the all-dielectric structural color. Full size image ...
To overcome this challenge, we proposed all-dielectric metasurface colorimetric sensor which exhibits dual-resonance in the visible region. Thereafter, we confirmed with simulation that, in the elaborately designed dual-Lorentzian-type spectra, highly perceptible variations of structural color were ...