Intrinsically or extrinsically reconfigurable chirality in plasmonic chiral metasurfaces
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.05.006
Abstract: Abstract In this work, we theoretically present a reconfigurable plasmonic chiral metasurface based on a sandwiched metal–insulator–metal structure, which can strongly, spin-selectively absorb circularly polarized light. Through finite-difference time-domain simulation, the absorption of left- or… read more here.
Keywords: plasmonic chiral; chiral metasurface; circularly polarized; intrinsically extrinsically ... See more keywords
Enhancing circular dichroism by super chiral hot spots from a chiral metasurface with apexes
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4984920
Abstract: Manipulating light spin (or circular polarization) is an important research field and may find broad applications from sensors, display technology, to quantum computing and communication. To this end, planar metasurfaces with larger circular dichroism are… read more here.
Keywords: chiral metasurface; dichroism; chiral hot; circular dichroism ... See more keywords
A Bilayered, Broadband, Angularly Robust Chiral Metasurface for Asymmetric Transmission
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2020.3037045
Abstract: Asymmetric transmission (AT) through metasurfaces yields a direction-sensitive behavior for electromagnetic (EM) wave propagation. To date, majority of the reported works operate at normal incidences alone and are, therefore, highly prone to variations under oblique… read more here.
Keywords: bilayered broadband; asymmetric transmission; chiral metasurface; metasurface ... See more keywords
Chiral Metasurface Vortex Focusing in Terahertz Band Based on Deep Learning
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2023.3264472
Abstract: This work demonstrates an on-demand design approach to reverse the design of the chiral metasurface structure by the given target circular dichroism (CD) value, which is based on deep learning. A conditional generation network (RCGN)… read more here.
Keywords: design; deep learning; based deep; chiral metasurface ... See more keywords
Analyzing the polarization response of a chiral metasurface stack by semi-analytic modeling.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.001236
Abstract: We investigate a class of stacked metasurfaces where the interaction between layers is dominated by their respective far-field response. Using a semi-analytic scattering matrix approach, we exploit the Fabry-Perot-type response for different layer distances to… read more here.
Keywords: metasurface stack; response; chiral metasurface; semi analytic ... See more keywords
Dual-band chiral metasurface for independent controls of spin-selective reflections.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.453703
Abstract: The development of chiral metasurfaces with spin-selective reflection or transmission provides a new way to control the circularly polarized (CP) waves. However, it is still a great challenge to independently manipulate the polarization, frequency, and… read more here.
Keywords: dual band; chiral metasurface; selective reflected; band chiral ... See more keywords
Multiple resonant modes coupling enabled strong CD response in a chiral metasurface.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.475060
Abstract: The chiral structures with strong circular dichroism (CD) response and narrow linewidth are desirable in chiral sensing, circularly-polarized light detection, and polarization imaging. Here, we theoretically proposed a hybrid chiral metasurface for differential absorption of… read more here.
Keywords: polarized light; multiple resonant; resonant modes; chiral metasurface ... See more keywords
Terahertz spin-selective perfect absorption enabled by quasi-bound states in the continuum.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.448624
Abstract: Spin-selective absorption is broadly applicable to numerous photonic devices. Here, based on a stereoscopic full metallic resonator array, a terahertz chiral metasurface with a single-layer structure is proposed and numerically demonstrated. By employing the coupled-mode… read more here.
Keywords: chiral metasurface; spin selective; bound states; states continuum ... See more keywords
Full-Color and Anti-Counterfeit Printings with All-Dielectric Chiral Metasurfaces
Sign Up to like & getrecommendations! Published in 2023 at "Photonics"
DOI: 10.3390/photonics10040401
Abstract: Structural color is anticipated to replace pigmented or chemical color due to its superior saturation, resolution, environmental friendliness, and longevity. We achieve a full-color gamut of structural colors and anti-counterfeit functions by an all-dielectric chiral… read more here.
Keywords: full color; structural colors; color; dielectric chiral ... See more keywords