In this paper, the idea of heterogeneous all-dielectric metasurfaces is proposed for a better metasurface design in shorter-wavelength ranges. An ultra-broadband reflector, as a proof-of-principle demonstration, is presented in this paper, both numerically and experimentally. The broadband reflector ...
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
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 ...
Enhanced high-harmonic generation from an all-dielectric metasurface The recent observation of high-harmonic generation from solids creates a new possibility for engineering fundamental strong-field processes by patterning the solid target with subwavelength nanostructures. All-dielectric metasurfaces exh... ...
学术报告:Metasurface computational imaging【FDTD超透镜仿真工作室】 超构透镜仿真工作室 学术报告:Tunable Bound States in the Continuum With High Q Factors【FDTD超透镜仿真工作室】 超构透镜仿真工作室 学术报告:Silicon metasurfaces with BIC for high-harmonic generation【FDTD超透镜仿真工作室】 ...
Metasurface analogues of electromagnetically induced transparency (EIT) have been a focus of the nanophotonics field in recent years, due to their ability to produce high-quality factor (Q-factor) resonances. Such resonances are expected to be useful for applications such as low-loss slow-light dev...
structural colorshigh saturationStructural colors engineering as a promising research area provides a high-resolution and environmental-friendly sustainable colors implementation. Here, metasurface-based concept was used to design waveguides and gratings of Si3N4 material on silicon dioxide substrates. The ...
Therefore, a single non-interleaved metasurface can impose two distinct phase profiles under two orthogonal incident polarizations to achieve polarization-dependent multiplexing phase elements. However, there is limited space for polarization manipulation using the geometric phase with angular DoF only or ...
We have presented two polarization convertors based on amorphous silicon metasurfaces. Results show that the cross-polarized transmission of the first polarization convertor is over 90% with over 95%doi:10.1007/s11468-016-0479-8Chen, Ming
All-dielectric metasurfaces Group theory Bound states in the continuum (BIC) Breaking of geometric symmetry Q-factor 1. Introduction The research of high Q-factor [1] optical metasurfaces has become a hot topic in the field of optical sensing. Fano resonance [2] is generated by the interferen...