Multi-terawatt 10 μm pulse atmospheric delivery over multiple Rayleigh ranges.
Multi-terawatt 10 μm pulse atmospheric delivery over multiple Rayleigh ranges.
复制标题
在多个瑞利范围内进行多太瓦 10 μm 脉冲大气传输。
DOI：
10.1364/ol.42.003722
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发表时间：
2017
期刊：
影响因子：
3.6
通讯作者：
J. Moloney
中科院分区：
文献类型：
--
作者：
K. Schuh;P. Panagiotopoulos;M. Kolesik;S. Koch;J. Moloney
我们预测长波长自陷多太瓦脉冲可以在大气中持续数公里。与灯丝不同，这些脉冲表现出低损耗传播，并在一定范围内保留大部分发射功率。一种涉及弱线性和非线性累积光学响应聚合的新机制被证明是负责任的，并且由超快动态透镜主导，该超快动态透镜是由与气体中空间分离的物质相关的场强度驱动的多体库仑介导的自由电子极化产生的。最初的几皮秒脉冲可以在数公里内压缩至 140 fs。
We predict that long wavelength self-trapped multi-terawatt pulses can be sustained over multiple kilometers in the atmosphere. Unlike filaments, these pulses exhibit low loss propagation and retain most of their launch power at range. A novel mechanism involving an aggregation of weakly linear and nonlinear cumulative optical responses is shown to be responsible and is dominated by an ultrafast dynamical lensing resulting from a field intensity driven many-body Coulomb mediated free electron polarization associated with spatially separated species in the gas. An initial few picosecond pulse can compress down to 140 fs over multiple kilometers.