Results 121 to 130 of about 130,971 (229)

Pseudomagnetic fields for classical waves in two‐dimensional artificial lattices: Mechanisms and applications

InfoScience, EarlyView.
Pseudomagnetic fields make light and sound emulate charged particles in magnetic fields, enabling magnetic‐free signal processing. This Review summarizes their origins, three implementations in two‐dimensional artificial lattices, and applications in energy localization and robust transport, guiding the design of topological integrated devices ...
Shuaihu Liu, Pan Hu, Xintao He, Zhinan Zeng, Yikai Su, Lu Sun   +5 more
wiley   +1 more source

Requirements of a middleware for managing a large, heterogeneous programmable network [PDF]

, 2002
Programmable networking is an increasingly popular area of research in both industry and academia. Although most programmable network research projects seem to focus on the router architecture rather than on issues relating to the management of ...
Hughes, A.
core  

Tunable Terahertz Generation in Dispersion‐Engineered ZnTe Waveguides

Laser &Photonics Reviews, EarlyView.
A dispersion‐engineered Zinc Telluride (ZnTe) slab waveguide platform enables tunable and efficient guided‐wave terahertz (THz) generation through modal phase matching. By tailoring the optical and THz modal dispersion, coherent THz emission is achieved across 0.1–3 THz.
Arun Jana, Cormac McDonnell, Mai Tal, Anastasiya Reveguk, Amit Kohn, Tal Ellenbogen   +5 more
wiley   +1 more source

Active steering of cathodoluminescence through a generalized Smith–Purcell effect

Light: Science & Applications
Optical metasurfaces can shape the near fields of energetic electrons, enabling Smith–Purcell (SP) emission. We introduce a generalized SP effect relying on finite periodic arrays whose elements possess individually tunable polarizabilities, allowing us ...
Eduardo J. C. Dias, A. Rodríguez Echarri, Theis P. Rasmussen, F. Javier García de Abajo, Joel D. Cox   +4 more
doaj   +1 more source

Electrically Programmable Pixelated Graphene-Integrated Plasmonic Metasurfaces for Coherent Mid-Infrared Emission

Active metasurfaces have recently emerged as compact, lightweight, and efficient platforms for dynamic control of electromagnetic fields and optical responses.
Xiu Liu (2592091), Xiao Luo (146399), Han Wang (254423), Jingyi Zou (8476167), Jiayu Li (720299), Zhuo Li (165589), Zexiao Wang (14358897), Sheng Shen (584608), Zhien Wang (10063711), Sen Lin (182597), Tianyi Huang (3521540), Hyeong Seok Yun (10297832), Yibai Zhong (14359923), Xu Zhang (49484), Jing Kong (531041), Haozhe Wang (287184), Rui Cheng (106681)   +16 more
core   +1 more source

A Nearly Perfect Implementation of a Broadband Optical Null Media via Space‐Folding

Laser &Photonics Reviews, EarlyView.
A space‐folding optical null medium with impedance‐matching layers enables broadband directional wave projection and wavefront engineering. By tailoring the folding ratio and dilution ratio, the structure maintains near‐unity transmittance over 5–9 GHz.
Yichao Liu, Jiale Li, Fei Sun, Qin Liao
wiley   +1 more source

Language-controllable programmable metasurface empowered by large language models

Nanophotonics
Programmable metasurface has become a prominent tool in various areas including control, communication, computing, and so on, due to its unique capability in the electromagnetic (EM) manipulation. However, it is lack of the intelligence in the sense that
Hu Shengguo, Xu Jiawen, Li Mingyi, Cui Tie Jun, Li Lianlin   +4 more
doaj   +1 more source

Bamboo-Slip-Inspired Conformal Reconfigurable Metasurfaces. [PDF]

Adv Sci (Weinh)
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Li Q, Zhang S, Feng Q, Xia D, Mu Y, Ma X, Han J, Liu H, Liu G, Li L.   +9 more
europepmc   +2 more sources

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

Laser &Photonics Reviews, EarlyView.
Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh, Yang Xu, Jose A. Rodrigo, Kenneth B. Crozier   +3 more
wiley   +1 more source

Resource Management for Programmable Metasurfaces: Concept, Prospects and Challenges

208214Sixth generation (6G) communications are expected to enable to the fusion of the digital world with the physical world, possible unprecedented requirements on the timely and efficient management of communication and computing resources ...
Liaskos, Christos, Triay, Joan, Schmid, Stefan, Katsalis, Kostas   +3 more
core   +1 more source