Results 111 to 120 of about 15,290 (259)
Cui Ma,* Ren-Zhen Zhang,* Hong-Yu Lu, Ting-Ting Dou, Li Li, Xing-Ke Yan School of Acupuncture-Moxibustion and Tuina, Gansu University of Traditional Chinese Medicine, Lanzhou, People’s Republic of China*These authors contributed equally to ...
Ma C +5 more
doaj
Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco +4 more
wiley +1 more source
Low‐index and low‐loss vdW muscovite represents an emerging robust dielectric platform for the creation of next‐generation all‐vdW nanophotonic architectures. Its utilization as a low‐index building‐block in all‐vdW multilayers enables extreme optical contrast when paired with MoS2, paving the way to the realization of few‐layer ultrathin DBS ...
Meri H. Hayrapetyan +10 more
wiley +1 more source
A review of reconfigurable metasurfaces for radar applications. [PDF]
Qian B, Chu H, Guo YX, Zhao Z.
europepmc +1 more source
Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco +7 more
wiley +1 more source
Reprogrammable Bistable Metasurface for Arbitrary Electromagnetic Wave Manipulation. [PDF]
Han D +8 more
europepmc +1 more source
Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida +5 more
wiley +1 more source
Hippocampal Local Field Potentials Encode Continuous Flight Speed in Homing Pigeons via Complementary Gamma and Theta Signatures. [PDF]
Yang L, Guo X, Tao A, Li Z.
europepmc +1 more source
Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio +10 more
wiley +1 more source
Programmable radio-frequency calculations in electromagnetic-wave domain. [PDF]
Chen SN +11 more
europepmc +1 more source

