软物质中的光学超空泡
Optical supercavitation in soft-matter
摘要：
本文从理论、数值和实验三个方面研究了非线性光波在胶凝化转变过程中的非平衡吸收性胶体材料中的传播。在足够高的光强度下，吸收受到阻碍并且光传播到介质中。该过程是介导的物质冲击波的形成，由于光学诱导的热扩散，并在很大程度上类似于流体动力学超空泡的机制，因为它是伴随着一个动态的相变区域之间的光束和吸收材料。
英文摘要：
We investigate theoretically, numerically and experimentally nonlinear optical waves in an absorbing out-of-equilibrium colloidal material at the gelification transition. At sufficiently high optical intensity, absorption is frustrated and light propagates into the medium. The process is mediated by the formation of a matter-shock wave due to optically induced thermodiffusion, and largely resembles the mechanism of hydrodynamical supercavitation, as it is accompanied by a dynamic phase-transition region between the beam and the absorbing material.
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