Abstract
Light is a powerful tool to manipulate matter, but existing approaches often
necessitate focused, high-intensity light that limits the manipulated object’
s shape, material and size. Here, we report that self-stabilizing optical
manipulation of macroscopic—millimetre-, centimetre- and even metre-scale—
objects could be achieved by controlling the anisotropy of light scattering
along the object’s surface. In a scalable design that features silicon
resonators on silica substrate, we identify nanophotonic structures that can
self-stabilize when rotated and/or translated relative to the optical axis.
Nanoscale control of scattering across a large area creates restoring
behaviour by engineering the scattered phase, without needing to focus
incident light or excessively constrain the shape, size or material
composition of the object. Our findings may lead to platforms for
manipulating macroscopic objects, with applications ranging from contactless
wafer-scale fabrication and assembly, to trajectory control for ultra-light
spacecraft and even laser-propelled light sails for space exploration.
中文那篇太过高估这个科技能应用的点了
基本上对比较大的东西它只能微调轨道或维持平衡
最多只能用在代替离子引擎的领域
(通常离子引擎的出力程度大概就只能抬得动几张纸)
如果想要靠这东西把交通工具直接飞起来那不可能