arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0704.0610physics.opticscond-mat.softnlin.PSphysics.flu-dyn
收藏

非本地媒体中的冲击

Shocks in nonlocal media

Neda Ghofraniha, Claudio Conti, Giancarlo Ruocco, Stefano Trillo

摘要:

研究了高斯激光束在非局域非线性介质中沿空间分布传播时无碰撞激波的形成。对于散焦非线性冲击幸存的非局部响应的平滑效应,虽然其动态定性地受到后者的影响,而聚焦非线性,它占主导地位,超过rectification。在热散焦介质中观察到的图案解释在我们的理论框架。

英文摘要:

We investigate the formation of collisionless shocks along the spatial profile of a gaussian laser beam propagating in nonlocal nonlinear media. For defocusing nonlinearity the shock survives the smoothing effect of the nonlocal response, though its dynamics is qualitatively affected by the latter, whereas for focusing nonlinearity it dominates over filamentation. The patterns observed in a thermal defocusing medium are interpreted in the framework of our theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑