WebParticularly at the phase transition point, we find that one of two bands becomes flat with a vanished group velocity along frequency axis in the vicinity of WPs. The study paves a way towards realizing different topological phases in the same photonic structure, which offers new opportunities to control wave transportation both in spatial and ... WebJul 31, 2024 · Optical Phase Transitions in Photonic Networks: a Spin-System Formulation Alba Ramos, Lucas Fernández-Alcázar, Tsampikos Kottos, and Boris Shapiro ... Our analysis sheds light on the nature of the thermal equilibrium states and reveals the existence of optical phase transitions which resemble a paramagnetic to a ferromagnetic and to a spin …
Photonic topological phase transition with phase-change …
WebOct 4, 2024 · The recent synthesis of two-dimensional staggered materials opens up burgeoning opportunities to study optical spin-orbit interactions in semiconducting Dirac-like systems. We unveil topological phase transitions in the photonic spin Hall effect in the graphene family materials. It is shown that an external static electric field and a high … WebJan 15, 2024 · However, for μ / 2 t = 1 it presents a topological quantum phase transition between two superconducting phases with radically different physical (topological) properties [4], [5], [6]. The phase for μ / 2 t < 1 is topologically non-trivial and the main feature of this phase is the presence of fermionic modes, called Majoranas, at the ends of ... biofinity contact lenses lowest price
LNOI photonic wire switch based on phase transition …
WebAbstract Photonic waveguide arrays provide an excellent platform for simulating conventional ... there appear nontrivial topological phases with large Chern numbers and topological phase transitions. By implementing Thouless pumping of light in photonic waveguide arrays, we propose a simple scheme to measure the bulk Chern numbers. ... WebIn the case of perfect phase-matching, that is, Dk ¼ 0, a photon initially in mode 1 will make a complete transition to mode 2 after propagating over a distance of coherence length l c ¼ p=2jjC . In contrast, in the case of strong phase-mismatch, that is, jDkj 0, the transition amplitude is negligible. WebNonlinear effects and photonic phase transitions in Nd 3+-doped nanocrystal-based random lasers André L. Moura, Sandra J. Carreño, Pablo I. R. Pincheira, Lauro J. Q. Maia, Vladimir Jerez, Ernesto P. Raposo, Anderson S. L. Gomes, and Cid B. de Araújo daigo escorting in hotel room