Recomposable Layered Metasurfaces for Wavelength‐Multiplexed Optical Encryption via Modular Diffractive Deep Neural Networks
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202523309
Abstract: Metasurfaces, composed of arrays of subwavelength scale meta‐atoms, enable precise control of light, paving the way for advanced holographic functionalities in compact, planar devices. Here, a modular diffractive deep neural network (MD 2 NN) architecture… read more here.
Keywords: diffractive deep; optical encryption; recomposable layered; deep neural ... See more keywords
Coupling Localized Laser Writing and Nonlocal Recrystallization in Perovskite Crystals for Reversible Multidimensional Optical Encryption
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202201413
Abstract: The ability to generate and manipulate photoluminescence (PL) with high spatial resolution has been of primary importance for applications in micro‐optoelectronics, while the emerging metal halide perovskites offer novel material platforms where diverse photonic functionalities… read more here.
Keywords: optical encryption; perovskite crystals; laser; encryption ... See more keywords
A security-enhanced joint transform correlator optical encryption system with cropping operation
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.167654
Abstract: Abstract A security-enhanced joint transform correlator optical encryption system with cropping operation is proposed in this paper. Cropping operation is usually used as an attack method in the field of optical encryption. However, in this… read more here.
Keywords: encryption system; cropping operation; optical encryption; security ... See more keywords
Optical encryption based on ghost imaging and public key cryptography
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2018.07.014
Abstract: Abstract In this paper, according to the phase object in the ghost imaging has a stealth effect, we proposed an optical encryption method based on compressive ghost imaging and public key cryptography. This method solves… read more here.
Keywords: optical encryption; encryption; imaging public; public key ... See more keywords
Optical encryption scheme for multiple-image based on spatially angular multiplexing and computer generated hologram
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105953
Abstract: ABSTRACT We propose an optical encryption scheme for multiple images based on angle multiplexing and computer generated hologram(CGH) in this paper. In the encryption process, the original images are firstly modulated by two random phase… read more here.
Keywords: scheme multiple; image; encryption scheme; optical encryption ... See more keywords
Reprogrammable meta-hologram for optical encryption
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-19312-9
Abstract: Meta-holographic encryption is a potentially important technique for information security. Despite rapid progresses in multi-tasked meta-holograms, the number of information channels available in metasurfaces is limited, making meta-holographic encryption vulnerable to some attacking algorithms. Herein,… read more here.
Keywords: information; meta hologram; optical encryption; encryption ... See more keywords
QR-code optical encryption in the scheme with spatially incoherent illumination based on two micromirror light modulators
Sign Up to like & getrecommendations! Published in 2020 at "Quantum Electronics"
DOI: 10.1070/qel17139
Abstract: An optical encryption scheme with spatially incoherent illumination based on two micromirror light modulators has been experimentally implemented for the first time. Currently, such modulators are the fastest tools for spatio-temporal light modulation; their high… read more here.
Keywords: encryption scheme; incoherent illumination; optical encryption; encryption ... See more keywords
Optical encryption based on double random-phase encoding: secure versus unsecure variants.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.383506
Abstract: A smart brute-force double random-phase encoding attack is presented that takes advantage of an unreported vulnerability: the smoothness of mean squared error (MSE) and correlation coefficient (CC) curves in a key-sensitivity analysis. The vulnerability reported… read more here.
Keywords: encryption based; phase encoding; optical encryption; random phase ... See more keywords
Optical encryption via monospectral integral imaging.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.031516
Abstract: Optical integral imaging (II) uses a lenslet array and CCD sensor as the 3D acquisition device, in which the multispectral information is acquired by a color filter array (CFA). However, color crosstalk exists in CFA… read more here.
Keywords: color; via monospectral; optical encryption; encryption ... See more keywords
Learning-based attacks for detecting the vulnerability of computer-generated hologram based optical encryption.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.380004
Abstract: Optical encryption has attracted wide attention for its remarkable characteristics. Inspired by the development of double random phase encoding, many researchers have developed a number of optical encryption systems for practical applications. It has also… read more here.
Keywords: optical encryption; cgh based; encryption; learning based ... See more keywords
Optical encryption using uncorrelated characteristics of dynamic scattering media and spatially random sampling of a plaintext.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.411327
Abstract: Scattering media are generally regarded as an obstacle in optical imaging. However, the scattering of a diffuser can be exactly taken as an advantage to act as random phase masks in the field of optical… read more here.
Keywords: scattering media; optical encryption; encryption; characteristics dynamic ... See more keywords