Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
Physics Department, Missouri University of Science and Technology, Rolla, Missouri 65409, USA.
Phys Rev Lett. 2020 Oct 16;125(16):165901. doi: 10.1103/PhysRevLett.125.165901.
Selective excitation of a diffusive system's transmission eigenchannels enables manipulation of its internal energy distribution. The fluctuations and correlations of the eigenchannel's spatial profiles, however, remain unexplored so far. Here we show that the depth profiles of high-transmission eigenchannels exhibit low realization-to-realization fluctuations. Furthermore, our experimental and numerical studies reveal the existence of interchannel correlations, which are significant for low-transmission eigenchannels. Because high-transmission eigenchannels are robust and independent from other eigenchannels, they can reliably deliver energy deep inside turbid media.
选择激发扩散系统的传输本征通道可以实现对其内部能量分布的控制。然而，本征通道的空间分布的涨落和相关性至今仍未被探索。在这里，我们表明高传输本征通道的深度分布表现出低实现间波动。此外，我们的实验和数值研究揭示了通道间相关性的存在，这对于低传输本征通道是很重要的。因为高传输本征通道是稳健的，并且独立于其他本征通道，它们可以可靠地将能量输送到混浊介质的深处。
