In this paper we review a number of optical image encryption techniques proposed in the
literature inspired by the architecture of the classic optical Double Random Phase Encoding …

Optical metasurfaces can offer high-quality multichannel displays by modulating different
degrees of freedom of light, demonstrating great potential in the next generation of optical …

Abstract Information security and authentication are important challenges facing society.
Recent attacks by hackers on the databases of large commercial and financial companies …

Exploiting various degrees of freedom of light, metasurfaces have unique advantages in
multiple‐channel information storage and demonstration, which thereby provides a novel …

Two novel visual cryptography (VC) schemes are proposed by combining VC with single-
pixel imaging (SPI) for the first time. It is pointed out that the overlapping of visual key images …

In the modern era, the secure transmission and storage of information are among the utmost
priorities. Optical security protocols have demonstrated significant advantages over digital …

We propose an optical multiple-image encryption scheme based on computational ghost
imaging with the position multiplexing. In the encryption process, each plain image is …

An optical color image encryption method based on Hadamard single-pixel imaging (SPI)
and Arnold transformation is proposed, in which, optical full-color image encryption with …

In this paper, we propose a high performance optical encryption (OE) scheme based on
computational ghost imaging (GI) with QR code and compressive sensing (CS) technique …

Compared with the traditional holographic technology, metasurface holography is a
promising technology due to the large field angle and high spatial resolution. Thanks to the …