Aguilera-Rojas Pedro J, Clerc Marcel G, Navia Simon
Opt Lett. 2024 Jun 15;49(12):3292-3295. doi: 10.1364/OL.522830.
Pattern formation can be induced by coupling electromagnetic fields to a polarizable and lossy medium. Increasing energy injection patterns can exhibit aperiodic behaviors. We investigate the self-organization of unidimensional aperiodic patterns. Based on a liquid crystal light valve (LCLV) with optical feedback, we observed aperiodic one-dimensional patterns with power laws in the temporal and spatial spectrum density of the light intensity, and their pseudo envelope and phase characteristic of spatiotemporal complexity. Theoretically, a local model describes the system close to nascent bistability and spatial instability. Numerical simulations of this model show chaotic spatiotemporal patterns whose temporal and spatial spectra have exponents similar to those observed experimentally.
通过将电磁场与可极化且有损耗的介质耦合，可以诱导图案形成。增加能量注入模式会表现出非周期性行为。我们研究一维非周期性图案的自组织。基于具有光反馈的液晶光阀（LCLV），我们在光强的时间和空间频谱密度中观察到具有幂律的非周期性一维图案，以及它们的伪包络和时空复杂性的相位特征。从理论上讲，一个局部模型描述了接近新生双稳态和空间不稳定性的系统。该模型的数值模拟显示出混沌时空图案，其时间和空间频谱的指数与实验观察到的指数相似。
