Di Battista Diego, Ancora Daniele, Zacharakis Giannis, Ruocco Giancarlo, Leonetti Marco
Opt Express. 2018 Jun 11;26(12):15594-15608. doi: 10.1364/OE.26.015594.
Hyperuniform structures possess the ability to confine and drive light, although their fabrication is extremely challenging. Here we demonstrate that speckle patterns obtained by a superposition of randomly arranged sources of Bessel beams can be used to generate hyperunifrom scalar fields. By exploiting laser light tailored with a spatial filter, we experimentally produce (without requiring any computational power) a speckle pattern possessing maxima at locations corresponding to a hyperuniform distribution. By properly filtering out intensity fluctuation from the same speckle pattern, it is possible to retrieve an intensity profile satisfying the hyperuniformity requirements. Our findings are supported by extensive numerical simulations.
超均匀结构具有限制和驱动光的能力，尽管其制造极具挑战性。在此，我们证明了通过随机排列的贝塞尔光束源叠加获得的散斑图案可用于生成超均匀标量场。通过利用用空间滤波器定制的激光，我们通过实验产生（无需任何计算能力）一种散斑图案，该图案在对应于超均匀分布的位置具有最大值。通过从同一散斑图案中适当滤除强度波动，有可能获得满足超均匀性要求的强度分布。我们的发现得到了广泛数值模拟的支持。
