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Domain wall dynamics in an optical Kerr cavity
Víctor J Sánchez-Morcillo1, Víctor Espinosa, Isabel Pérez-Arjona
1Departament de Física Aplicada, Escuela Politècnica Superior de Gandia, Universitat Politècnica de Valencia, Ctra. Natzaret-Oliva s/n, 46730 Grau de Gandia, Spain.
Summary
This study reveals a novel transition between static and moving domain walls in optical systems, uncovering complex dynamics like bursting and spiking. These findings offer insights into pattern formation and interaction in nonlinear optics.
Area of Science:
- Nonlinear Optics
- Complex Systems Dynamics
Background:
- Anisotropic optical cavities with Kerr media exhibit complex behaviors.
- Understanding domain wall dynamics is crucial for nonlinear optical systems.
Purpose of the Study:
- Investigate the transition between static (Ising) and moving (Bloch) domain walls.
- Analyze the complex temporal and spatiotemporal dynamics of these domain walls.
- Explore domain wall interactions and bound state formation.
Main Methods:
- Theoretical analysis of an anisotropic optical cavity with a self-focusing Kerr medium.
- Modeling the nonequilibrium Ising-Bloch transition (NIB).
- Characterization of spatiotemporal dynamics and domain wall interactions.
Main Results:
- Observed a bifurcation between static Ising and moving Bloch domain walls.
- Bloch walls exhibit regular and irregular temporal behaviors, including bursting and spiking.
- Identified complex spatiotemporal dynamics in patterns connected by domain walls.
- Addressed domain wall interaction and the formation of bound states.
Conclusions:
- The nonequilibrium Ising-Bloch transition is a key phenomenon in such optical systems.
- Complex dynamics arise from the interplay of pattern formation and domain wall motion.
- Domain wall interactions play a significant role in the system's behavior.