Robust Chiral High‐Q Response Driven by Quasi‐Bound Flatband in the Continuum
This work theoretically proposes and numerically realizes chiral flatband quasi‐BICs by engineering four counterpropagating folded guided modes. The chiroptical response arises from destructive interference of two antiphase intrinsic modes, and the flatband originates from the interactions among opposite curvature hybrid guided modes.
Lei Huang +6 more
wiley +1 more source
Suppressing Stitching Errors in Full‐Sensor‐Plane Color Routers via Optical Structural Similarity
Angle‐specific nanophotonic color routers are assembled from a library of inverse‐designed unit cells matched to local incidence angles. Optical structural similarity (OSS) constrains neighboring permittivity profiles during optimization, suppressing inter‐cell stitching errors without additional full‐wave simulations and enabling oblique‐incidence ...
Donghyun Kim +4 more
wiley +1 more source
Dynamically tunable membrane metasurfaces for infrared spectroscopy and strong light-matter interactions. [PDF]
Kuruoglu F +9 more
europepmc +1 more source
Robust Bound States in the Continuum in Mirror‐Symmetric Terahertz Metasurfaces
An ideal BIC, supported by local inversion symmetry in a mirror‐symmetric metasurface, transforms into a QBIC by introducing an asymmetry parameter α. This transition yields a finite Q‐factor following Q ∝ α−1.95, whereas the singular polarization state splits into two distinct circularly polarized points. This framework ensures robust BIC formation at
Die Zou +9 more
wiley +1 more source
Holographic lasing with dielectric metasurfaces. [PDF]
Bashiri A +6 more
europepmc +1 more source
Noninvasive Intelligent Brain‐Metasurface System for Real‐Time Electromagnetic Wave Manipulation
A noninvasive intelligent brain–computer interface (BCI) is integrated with a reconfigurable metasurface to establish a direct neural‐to electromagnetic transduction pathway for real time, multimodal wave control. By combining convolutional‐neural‐network‐based decoding of motor‐imagery electroencephalography (EEG) signals with threshold‐based ...
Xiao Hai +3 more
wiley +1 more source
An Active Beam‐Reconfigurable Retrodirective Array
The proposed beam‐reconfigurable retrodirective array not only enables retroreflection toward the signal source but also achieves flexible beam steering via a tunable reflection plate, offering a viable solution for real‐time multipoint communication and multitarget wireless power transfer.
Wen Yue Wei +5 more
wiley +1 more source
Freeform optical flow based on meta-conveyors for compact, programmable in situ nanomanipulation. [PDF]
Li T +7 more
europepmc +1 more source
Deep learning-enabled temporal sequencing of metasurface for rewritable and customizable electromagnetic illusions. [PDF]
Han H +6 more
europepmc +1 more source
Eye-Tracking-Driven Programming Metasurface System for Adaptive Beam Focusing and Polarization-Agile Communication. [PDF]
Zhang S +9 more
europepmc +1 more source

