Reconfigurable Topological Dissipative Light Bullets
Qian Tang, Yiqi Zhang, Yaroslav V. Kartashov, and Carles Mili\'an

TL;DR
This paper introduces a new class of dissipative light bullets with reconfigurable shapes in topological lattices, enabling robust 3D light structures controlled via external laser frequency.
Contribution
It demonstrates the existence of reconfigurable, topologically protected dissipative light bullets with controllable shapes in the Su-Schrieffer-Heeger lattice, combining topological photonics with dissipative soliton physics.
Findings
Reconfigurable light bullets with diverse shapes are realized.
Robust stationary bullets and breathers are identified.
Shape control is achieved through laser frequency tuning.
Abstract
We discover a novel class of dissipative light bullets whose spatial profiles may be drastically reshaped along the bulk, edges and corners of the Su-Schrieffer-Heeger lattice owing to the dissipative and topological nature of the system. These light bullets appear due to resonances with different modes in lattice spectrum and may have very rich shapes that can be adiabatically controlled by varying the frequency of the external laser source. We report on robust stationary bullets and breathers which are understood from the corresponding bifurcation analysis. Our results provide a new route to realisation of reconfigurable and robust 3D light forms in topologically nontrivial systems.
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Taxonomy
TopicsModular Robots and Swarm Intelligence · Slime Mold and Myxomycetes Research · Advanced Materials and Mechanics
