Floquet chern insulator of light
WebAug 18, 2024 · This photoinduced pair annihilation is accompanied by a non-topological phase transition to the Floquet normal insulator phase in contrast to the well-known circularly-polarized-light-induced topological phase transition to the Floquet Chern insulator phase. We start by showing that new bandgaps—Floquet gaps—can be created in driven nonlinear PhCs, which do not exist in the static band structure. We consider a two-dimensional PhC that involves second-order optical nonlinear materials such as LiNbO3. The static band structure is schematically shown in … See more To better illustrate some of the key concepts, we focus on an example when two bands become close to each other under driving ω2 − ω1≈ Ω, while both are far away from other … See more Next, we study topological phase transitions between Floquet Chern insulators and normal insulators and show these transition … See more Finally, we show the existence of chiral edge states at the interfaces between a Floquet Chern insulator (gray region in Fig. 4a) and normal … See more
Floquet chern insulator of light
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WebThe U.S. Department of Energy's Office of Scientific and Technical Information WebMar 1, 2024 · Here, we extend topological phases into dynamically driven systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals (PhCs). Specifically, we start by presenting the ...
WebApr 10, 2013 · Figure 1: Geometry and band structure of honeycomb photonic Floquet topological insulator lattice. a, Microscope image of the input facet of the photonic lattice, showing honeycomb geometry with ... WebFloquet ansatz reveals a direct connection to the two-dimensional half-BHZ Chern insulator [17] with a constant electric field applied [16,32]. In the strong-drive limit, the electric field is weak and leads to a slow adiabatic evolution of the initial wavepacket through the Brillouin zone. During this evolution, which explores the whole
WebWe achieve Floquet Chern insulators of light in dynamically driven nonlinear photonic crystals. Through numerical simulation, we show the topological phase transitions occur at synthetic Weyl points and the existence of topologically-protected chiral edge states. WebFeb 22, 2024 · Here, we extend topological phases into dynamically driven nonlinear systems and achieve a Floquet Chern insulator of light in nonlinear photonic crystals (PhCs). Specifically, we start by presenting the Floquet eigenvalue problem in driven two-dimensional PhCs and show it is necessarily non-Hermitian.
WebSep 13, 2024 · Europe PMC is an archive of life sciences journal literature.
photo of jasminehttp://export.arxiv.org/abs/1902.08560 how does moonmist work with dayboundWebWe achieve Floquet Chern insulators of light in dynamically driven nonlinear photonic crystals. Through numerical simulation, we show the topological phase transitions occur … how does moonshine cause blindnessWebSep 13, 2024 · Floquet Chern insulators of light Nat Commun. 2024 Sep 13 ... Finally, we numerically demonstrate the existence of chiral edge states at the interfaces between a … photo of jason alexanderWebFeb 9, 2024 · The breaking of time-reversal symmetry is a crucial ingredient to topological bands. It can occur intrinsically in materials with magnetic order, or be induced by external fields, such as magnetic fields in quantum Hall systems or circularly polarized light fields in Floquet Chern insulators. Apart from polarization, photons can carry another degree of … how does mood affect eating behaviourWebAug 22, 2024 · Floquet Chern insulators of light. 13 September 2024. Li He, Zachariah Addison, … Bo Zhen. Superior robustness of anomalous non-reciprocal topological edge states. 13 October 2024. how does moody\u0027s make moneyWebJul 20, 2024 · We calculate the topological Floquet spectrum and show the existence of topological edge states corresponding to real-space Chern number 1 24,25, which can … photo of jasmine flower