Hong Kong Applied Science and Technology Research Institute Company, Limited

Nano and Advanced Materials Institute Limited

Qingyi Yang

Jifan Li

Kwok Keung Paul Ho

Jinbo Jiang

Han Wang

Jianjun Song

Yunhe Lai

Haoyuan Bai

Systems and methods which provide single nanostructure-integrated metalens configurations implementing projector and light shaper functionality are described. A single nanostructure-integrated metalens may comprise an optical substrate having a preconfigured mapping of integrated nanostructures providing metasurfaces for modulating the behaviors of electromagnetic waves to implement a thin, flat lens. A period distance for the nanostructures, a height of the nanostructures, and a quantization for lateral sizes of the nanostructures may be selected for a particular single nanostructure-integrated metalens configuration. A first phase map may be computed with respect to structured light generation and a second phase map may be computed with respect to light collimation, wherein fusion of these phase maps may be used to define a preconfigured mapping for the nanostructures of a single nanostructure-integrated metalens implementation. The phase distribution of the first phase map may be inverse designed, such as using an inverse phase design technique.

Single nanostructure-integrated metalens

The present disclosure provides a flexible electric generator and methods for fabricating the same. The flexible electric generator comprises a flexible triboelectric layer covering the electrode layer of a flexible piezoelectric generator that enhances output power by combining piezoelectric effect and triboelectric effect. The reliability of the flexible electric generator under bending is also improved due to the presence of the flexible triboelectric layer. The fabrication methods of the disclosed flexible electric generators are simple, thereby enabling large-scale manufacturing.

Flexible electric generator for generating electric power

Growing community of inventors

Hong Kong, China

Qingyi Yang