Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullets.
Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullets.
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规范灯丝光弹中共振辐射的非周期循环
DOI：
10.1103/physrevlett.118.163901
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发表时间：
2017
影响因子：
8.6
通讯作者：
A. Demircan
中科院分区：
文献类型：
--
作者：
C. Brée;I. Babushkin;U. Morgner;A. Demircan
我们证明了一个迄今为止尚未认识到的和非常有效的机制，防止灯丝崩溃，并允许持续的自我引导传播保持轴上的大部分光能在意想不到的长距离。关键因素是通过共振辐射的发射将能量持续泄漏到正常色散区的可能性。辐射的频率由光生等离子体动态修改的色散决定，从而使我们能够激发光谱范围内的新频率，否则很难获得。
We demonstrate an up to now unrecognized and very effective mechanism which prevents filament collapse and allows persistent self-guiding propagation retaining a large portion of the optical energy on axis over unexpected long distances. The key ingredient is the possibility of continuously leaking energy into the normal dispersion regime via the emission of resonant radiation. The frequency of the radiation is determined by the dispersion dynamically modified by photogenerated plasma, thus allowing us to excite new frequencies in spectral ranges which are otherwise difficult to access.