Results 211 to 220 of about 1,327 (253)

Vortex Light Bullets Guided by Disclination Defects

open access: yesNanophotonics, Volume 15, Issue 14, 27 July 2026.
A new class of stable and thresholdless light bullets carrying vorticity, guided by the disclination defects introduced into Su–Schrieffer–Heeger‐like lattices with a focusing cubic nonlinearity, is reported. Different discrete rotational symmetry of the aperiodic lattice determines the allowed values of the topological charge of the vortex bullets ...
Zhuo Zhang   +4 more
wiley   +1 more source

High‐Order Janus Bound States in the Continuum Assisted by Unidirectional Guided Resonances

open access: yesNanophotonics, Volume 15, Issue 14, 27 July 2026.
A high‐order Janus bound state in the continuum, featuring a q = −3 vortex in the upward radiation channel and a q = +1 vortex in the downward channel, is realized in truncated‐cone photonic crystal slabs by merging unidirectional guided resonances with a symmetry‐protected BIC, enabling direction‐dependent control of topological light emission ...
Zengping Su   +8 more
wiley   +1 more source

Nonlocal Conduction in a Metawire. [PDF]

open access: yesAdv Mater
Iglesias Martínez JA   +3 more
europepmc   +1 more source

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