Results 101 to 110 of about 70,954 (220)

Self‐Assembled Physical Unclonable Function Labels Based on Plasmonic Coupling

Advanced Optical Materials, Volume 13, Issue 19, July 4, 2025.
This article introduces advanced anti‐counterfeit labels crafted through DNA‐guided self‐assembly of plasmonic nanoparticles. Utilizing nanosphere lithography for dense and precise nanoparticle placement, these labels feature unique, unclonable optical signatures achieved through plasmonic coupling, detectable by an economical 3D‐printed dark field ...
Mihir Dass, Lena Raab, Christoph Pauer, Christoph Sikeler, Larissa Heinze, Joe Tavacoli, Irina V. Martynenko, Ulrich Rührmair, Gregor Posnjak, Tim Liedl   +9 more
wiley   +1 more source

A simple and efficient attack on the Merkle-Hellman knapsack cryptosystem. [PDF]

PLoS One
Bi J, Su L, Peng H, Wang L.
europepmc   +1 more source

Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes

Advanced Optical Materials, EarlyView.
This study explores spectrally tunable photonics barcodes using carbonized polymer dots (CPDs) based on whispering gallery mode (WGM) photoluminescence. CPDs offer wavelength‐dependent emission from visible to near‐infrared (NIR), thereby enabling variable WGM emissions.
Barun Kumar Barman, Keisuke Watanabe, Tadaaki Nagao   +2 more
wiley   +1 more source

Enhancing IoT security with a DNA-based lightweight cryptography system. [PDF]

Sci Rep
Aqeel S, Khan AS, Abbasi IA, Algarni F, Grzonka D.   +4 more
europepmc   +1 more source

Flexible and Water‐Resistant Y3Al5O12:Er3+/Yb3+ Upconversion Nanoparticles‐Based Luminescent Cellulose Paper for Anti‐Counterfeiting and VOCs Detection

Advanced Optical Materials, EarlyView.
This work presents a cost effective and sustainable approach of designing flexible, water resistant and bright green luminescent Y3Al5O12:Er3+/Yb3+ upconversion nanoparticles (UCNPs) incorporated into cellulose paper for anti‐counterfeiting and volatile organic compounds (VOCs) detection applications.
Annu Balhara, Rohan Rohilla, Bijaideep Dutta, Jyoti Prakash, Surajit Samui, Santosh K. Gupta   +5 more
wiley   +1 more source

Certificateless aggregate signcryption scheme with multi-ciphertext equality test for the internet of vehicles. [PDF]

PLoS One
Yang X, Luo X, Liu R, Li S, Yao K.
europepmc   +1 more source

Magnetic Steganography Based on Wide‐Field Diamond Quantum Microscopy

Advanced Optical Materials, EarlyView.
This document illustrates magnetic steganography. Magnetic graphics, including pixel art and QR codes, are produced using magnetic materials (such as Ni) and obscure behind patterns manufactured using non‐magnetic materials (such as Au), which are unveiled through widefield quantum microscopy. Furthermore, manipulating the electron spin of NV with dual
Jungbae Yoon, Jugyeong Chung, Hyunjun Jang, Jinsu Jung, Yuhan Lee, Chulki Kim, Nojoon Myoung, Donghun Lee   +7 more
wiley   +1 more source

Cryptographic key generation using deep learning with biometric face and finger vein data. [PDF]

Front Artif Intell
Gizachew Yirga T, Gizachew Yirga H, Addisu EG.   +2 more
europepmc   +1 more source

Stimulated Raman Scattering with Optical Vortex Beams

Advanced Photonics Research, EarlyView.
This study presents exact analytical expressions for stimulated Raman scattering with Laguerre‐Gaussian beams, revealing signal dependence on topological and hyperbolic momentum. The results provide a theoretical foundation for coherent Raman imaging and detecting orbital angular momentum of light via structured light in nonlinear optics.
Minhaeng Cho
wiley   +1 more source

Single-State Multi-Party Quantum Key Agreement with Single-Particle Measurement. [PDF]

Entropy (Basel)
Yang H, Cai D, Qian L, Zhang R, Lu S, Sun C.   +5 more
europepmc   +1 more source