Optical diametric drive acceleration through action–reaction symmetry breaking
Optical diametric drive acceleration through action–reaction symmetry breaking
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DOI：
10.1038/nphys2777
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发表时间：
2013-10
期刊：
影响因子：
19.6
通讯作者：
M. Wimmer;A. Regensburger;C. Bersch;M. Miri;S. Batz;G. Onishchukov;D. Christodoulides;U. Peschel
中科院分区：
文献类型：
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作者：
M. Wimmer;A. Regensburger;C. Bersch;M. Miri;S. Batz;G. Onishchukov;D. Christodoulides;U. Peschel
牛顿第三运动定律是经典物理学的支柱之一。这一基本原理表明，两个物体相互作用的力是相等的，也是相反的。如果所产生的加速度朝向相同的方向，这反而会导致一种违反直觉的现象，即径向驱动。在这样的假设安排中，两个相互作用的粒子通过破坏作用-反应对称性，不断地在同一方向上相互加速。虽然在经典力学中，这个过程的任何实现都需要两个粒子中的一个具有负质量，因此是严格禁止的，但在有效质量也可以达到负号的周期结构中，它仍然是可行的。在这里，我们报道了脉冲在非线性光学网格格子中传播的这种径向驱动加速度的首次实验观测。作用-反应对称性的反转证明可以为频率转换和脉冲控制应用带来全新的可能性。
Newton’s third law of motion is one of the pillars of classical physics. This fundamental principle states that the forces two bodies exert on each other are equal and opposite. Had the resulting accelerations been oriented in the same direction, this would have instead led to a counterintuitive phenomenon, that of diametric drive. In such a hypothetical arrangement, two interacting particles constantly accelerate each other in the same direction through a violation of the action–reaction symmetry. Although in classical mechanics any realization of this process requires one of the two particles to have a negative mass and hence is strictly forbidden, it could nevertheless be feasible in periodic structures where the effective mass can also attain a negative sign,,,,,. Here we report the first experimental observation of such diametric drive acceleration for pulses propagating in a nonlinear optical mesh lattice,,,,,,. The demonstrated reversal of action–reaction symmetry could enable altogether new possibilities for frequency conversion and pulse-steering applications.