Topological Unidirectional Guided Resonances Emerged from Interband Coupling.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.056401
Abstract: Unidirectional guided resonances (UGRs) are optical modes in photonic crystal slabs that radiate toward one side without the need for mirrors on the other. In this Letter, we report a mechanism to realize UGRs by… read more here.
Keywords: unidirectional guided; guided resonances; resonances emerged; interband coupling ... See more keywords
Analysis of Giant Reflectance Tuning Enabled by Unidirectional Guided Resonance With Embedded Absorber
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2025.3591895
Abstract: Achieving giant reflectance tuning is essential for various applications, including optical communication, switching, processing, and sensing. While optical resonances effectively enhance light-matter interactions, their inherent dispersive nature limits the maximum achievable reflectance tunability at the… read more here.
Keywords: giant reflectance; analysis; embedded absorber; reflectance ... See more keywords
High Q-factor chiroptical response based on unidirectional guided resonances.
Sign Up to like & getrecommendations! Published in 2025 at "Optics letters"
DOI: 10.1364/ol.561847
Abstract: The maximal chiroptical response with a high Q-factor is demonstrated based on the unidirectional guided resonance state by a one-dimensional metasurface composed of periodical tilted silicon nano-pillars. The structural chirality leads to differences in the… read more here.
Keywords: chiroptical response; based unidirectional; factor; high factor ... See more keywords
Meta-image displays using unidirectional guided-wave-driven metasurfaces.
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DOI: 10.1364/ol.564941
Abstract: Metasurfaces can freely manipulate the wavefronts of incident beams, making them a highly effective platform for holographic imaging or nanoprinting. However, their on-chip integration is hindered by the need for external light excitation, and the… read more here.
Keywords: image displays; image; meta image; unidirectional guided ... See more keywords
Tunable Unidirectional Guided Resonances in Momentum Space via a Si-Ge2Sb2Te5 Metasurface
Sign Up to like & getrecommendations! Published in 2025 at "Photonics"
DOI: 10.3390/photonics12111121
Abstract: Unidirectional guided resonances (UGRs) in periodic metasurfaces have recently attracted research interest because of their ability to achieve unidirectional radiation in all-dielectric structures without metal reflectors, which offers new possibilities for efficient grating couplers and… read more here.
Keywords: tunable unidirectional; resonances momentum; guided resonances; gst phase ... See more keywords