We study dynamics, structure and organization of the new paradigm of wavewrinkle structures associated with multipulse laser-induced RayleighTaylor (RT) instability in the plane of a target surface in the circumferential zone ( C -zone) of the spot. Irregular target surface, variation of the fluid layer thickness and of the fluid velocity affect the nonlinearity and dispersion. The fluid layer inhomogeneity establishes local domains arranged (organized) in the «domain network». The traveling wavewrinkles become solitary waves and latter on become transformed into stationary soliton wavewrinkle patterns. Their morphology varies in the radial direction ofaussian-like spot ranging from the compacton-like solitons to the aperiodic rectangular waves (with rounded top surface) and to the periodic ones. These wavewrinkles may be successfully juxtapositioned with the exact solution of the nonlinear differential equations formulated in the KadomtsevPetviashvili sense taking into account the fluid conditions in particular domain. The cooling wave that starts at the periphery by the end of the pulse causes sudden increase of density and surface tension: the wavewrinkle structures become unstable what causes their break-up. The onset of solidification causes formation of an elastic sheet which starts to shrink generating lateral tension on the wavewrinkles. The focusing of energy at the constrained boundary causes the formation of wrinklons as the new elementary excitation of the elastic sheets.

中文翻译：

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与激光诱导瑞利-泰勒不稳定性相关的纳米皱纹、压实和皱纹：I. 气泡环境

我们研究了与多脉冲激光引起的瑞利泰勒 (RT) 不稳定性相关的波皱结构新范式的动力学、结构和组织，在光斑的圆周区 (C 区) 中的目标表面平面中。不规则的目标表面、流体层厚度和流体速度的变化影响非线性和色散。流体层的不均匀性建立了在“域网络”中排列（组织）的局部域。行波皱纹变成孤立波，后者转化为静止孤立波皱纹图案。它们的形态在类澳斯光斑的径向方向上变化，从类压实孤子到非周期性矩形波（具有圆形顶面）和周期性矩形波。考虑到特定域中的流体条件，这些波纹可以成功地与在 KadomtsevPetviashvili 意义上制定的非线性微分方程的精确解并列。脉冲结束时从外围开始的冷却波会导致密度和表面张力突然增加：波纹结构变得不稳定，从而导致它们破裂。凝固的开始导致弹性片的形成，弹性片开始收缩，在波纹上产生横向张力。能量在受限边界处的聚焦导致皱纹的形成，作为弹性片的新基本激发。