Results 121 to 130 of about 27,230 (299)

NbN Broadband Plasmonic Absorbers for Efficient Hot-Carrier Injection Toward Improved Solar-to-Hydrogen Conversion. [PDF]

Adv Sci (Weinh)
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Peng TY, Huang TF, Yamaguchi T, Chen JW, Kuo HY, Zhuang YR, Shiu HW, Im S, Zhao Y, Tanaka T, Chou HH, Lu YJ.   +11 more
europepmc   +2 more sources

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Metasurface- and PCSEL-Based Structured Light for Monocular Depth Perception and Facial Recognition

The novel depth-sensing system presented here revolutionizes structured light (SL) technology by employing metasurfaces and photonic crystal surface-emitting lasers (PCSELs) for efficient facial recognition in monocular depth-sensing. Unlike conventional
Wen-Cheng Hsu (16400033), Yao-Wei Huang (426136), Chia-Hsun Chang (11456960), Yu-Heng Hong (6634811), Hao-Chung Kuo (1403419)   +4 more
core   +2 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Metasurface-enabled astronomical polarimetry. [PDF]

In the past decade or so, metasurface optical components have received considerable scientific and industrial interest. The miniaturization afforded by metasurfaces could benefit astronomy in particular, which is an often-cited potential application area
Casini, Roberto, Li, Lisa W, Oakley, Phillip H H, Rubin, Noah A, Schindhelm, Rebecca N, Sellers, Sean G   +5 more
core   +2 more sources

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Recent Progress and Comment on Metasurface Devices Based on Two-photon Three-dimensional Printing

Guangtongxin yanjiu, 2023
Metasurface has attracted great interest during the past ten years for its ultra-thin thickness, ultrashort modulation distance and manipulation of light with ultrahigh resolution, and it is easier to manufacture and integrate into devices with operating
Wu Mian, Wu Lin, Tao Jin
doaj  

Nonreciprocal-Beamsteering Reflective Metasurface

, 2021
This study proposes a reflective metasurface for full-duplex nonreciprocal-beam-steering and amplification. The metasurface is realized by leveraging the exotic characteristics of novel interconnected meta-atoms providing three main functions ...
Taravati, Sajjad, Sajjad Taravati, Eleftheriades, George V., George V. Eleftheriades   +3 more
core   +1 more source

Chemically Programmable Underwater Sound‐Absorbing Metamaterial via MXene Self‐Assembly

Advanced Science, EarlyView.
MXene self‐assembly creates a chemically programmable underwater metamaterial with quasi‐periodic layers and a chemical‐physical multi‐level constraint system. A crosslinker as a ‘chemical scissor’ precisely edits microscopic interactions, exciting deep‐subwavelength strong local resonances that induce near‐zero/negative effective bulk modulus (Keff ...
Ziwen Gan, Ranran Qi, Mingyi Liao, Bowen Chen, Chen Cheng, Wei Tu   +5 more
wiley   +1 more source