White-light symmetrization by the interaction of multifilamenting beams
White-light symmetrization by the interaction of multifilamenting beams
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DOI：
10.1103/physreva.79.053856
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发表时间：
2009-05
影响因子：
2.9
通讯作者：
K. Stelmaszczyk;P. Rohwetter;Y. Petit;M. Fechner;J. Kasparian;J. Wolf;L. Wöste
中科院分区：
文献类型：
--
作者：
K. Stelmaszczyk;P. Rohwetter;Y. Petit;M. Fechner;J. Kasparian;J. Wolf;L. Wöste
实验表明，两束多丝光束在熔融石英中相互作用，入射角可达几度，导致连续发射的对称性增加，从D{sub 2}到C{sub {infinity}}，围绕两束之间的对称轴。我们观察到在单个锥形发射模式的位置之间有一个强烈的白色圆盘，减少了每个锥形发射模式的锥形发射。我们将这种特性归因于两束之间的干涉区域中增强的自相位调制。这种频率转换消耗了光子浴中最初可用于馈送细丝的能量的40%以上。
We show experimentally that the interaction of two multifilamenting beams in fused silica with incidence angles up to a few degrees results in an increase in the symmetry of the continuum emission from D{sub 2} to C{sub {infinity}} around the axis of symmetry between the two beams. We observe an intense white disk between the locations of the individual conical emission patterns, reducing the conical emission in each of them. We attribute this behavior to an enhanced self-phase modulation in the interference region between the two beams. This frequency conversion depletes by more than 40% the energy initially available in the photon bath to feed filaments.