Cheng-Wei Qiu

TL;DR: A compact depth sensor that is inspired by the jumping spider is introduced, which combines metalens optics, which modifies the phase of incident light at a subwavelength scale, with efficient computations to measure depth from image defocus.

TL;DR: A dynamic Janus metasurface scheme in the visible spectral region that allows for flat optical elements with novel functionalities including beam steering, bifocal lensing, holographic encryption, and dual optical function switching.

TL;DR: The proposed PDPM opens up avenues for realizing more advanced and integrated multifunctional devices and systems that have two independent polarization‐controlled signal channels, which may find many applications in future‐oriented intelligent communication, imaging, and computing technologies.

TL;DR: The concept of encrypted thermal printing is proposed and experimentally validated, which could conceal encrypted information under natural light and present static or dynamic messages in an infrared image, demonstrating an extreme level of manipulation of heat flow for encryption, illusions, and messaging.

TL;DR: In this article, a functional "ghost" illusion device was proposed and realized by using the space transformation theory and engineering capability of metamaterials, which is capable of creating multiple virtual ghost images of the original object's position under the illumination of electromagnetic waves, thus ghosting and perceived as multiple ghost targets with different geometries and compositions.