Results 181 to 190 of about 43,865 (324)

Efficient Harvesting of Irregular and Low‐Frequency Mechanical Energy via Hybridized Electromagnetic‐Triboelectric Systems

Small, EarlyView.
ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han, Ju‐Hyuck Lee, Hong‐Joon Yoon   +2 more
wiley   +1 more source

Deformation engineering enables precise dispersion control in an optical microcavity. [PDF]

Light Sci Appl
Kullig J, Wiersig J.
europepmc   +1 more source

Quasi‐BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit

Small, EarlyView.
An analytical expression is developed to relate second‐harmonic generation to both the resonance Q factor and absorptance. Simulations and experiments on a dual‐resonance 3R‐MoS2 metasurface validate the formula, showing that absorptance engineering provides an effective route to enhance SHG beyond conventional Q‐only design.
Wenkai Yang, Hao Qin, Boqing Liu, Chuanyu Wang, Yilin Tang, Jiri Janousek, Xueqian Sun, Alex Y. Song, Yuerui Lu   +8 more
wiley   +1 more source

Activatable smart contrast agents for photoacoustic imaging

Smart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh, Jihye Lee, Suyoung Park, Juyoung Yoon, Won Jong Kim, Chulhong Kim   +5 more
wiley   +1 more source

Data/Simulation Results for Quantifying Radial Diffusion Rate Through Multi-MeV Electron Drift Oscillations Driven by Broadband ULF Waves: A Case Study of the September 2019 Geomagnetic Storm

Zhao, Hong, Sarris, Theodore E., Li, Xinlin, O'Brien, Declan, Chen, Rui, Mei, Yang, Xiang, Zheng, Baker, Daniel N.   +7 more
  +4 more sources

Broadband Infrared Absorption Features of Metasurfaces Constructed with a Titanium-Dielectric-Titanium Array Architecture. [PDF]

Nanomaterials (Basel)
Zhang C, Hu J, Chen H, Shao X, Yao X, You F, Wang H, Zhang X.   +7 more
europepmc   +1 more source

Segmented Online Identification of Broadband Oscillation Impedance Based on ASSA [PDF]

Yunyang Xu, Xinwei Sun, Bo Zhou, Xiaofeng Jiang   +3 more
openalex   +1 more source

Scalable Room‐Temperature Terahertz Graphene Cameras

Small Methods, EarlyView.
ABSTRACT Terahertz (THz) imaging has emerged as a powerful tool for non‐destructive, label‐free analysis across several scientific disciplines, ranging from materials science to biomedical research. By capturing the spatial‐dependent information in a broad range of frequencies, this technique enables the identification of chemical composition ...
Lili Shi, Leonardo Viti, Miriam S. Vitiello   +2 more
wiley   +1 more source

Regulating Pb off-centering distortion for white-light emission in 2D halide perovskites. [PDF]

Nat Commun
Zhang Y, Guo Y, Feng M, Lin S, Yang C, Li D, Xia Y, Gong Y, Bao X, Zhong Y, Zhang Z, Tian Y, Du W, Yue S, Wu B, Xing J, Yin J, Fu J, Liu X.   +18 more
europepmc   +1 more source

Terahertz Imaging and Broadband Wireless Communication Using Plasma Oscillations in Nanometer Field Effect Transistors [PDF]

, 2015
W. Knap
openalex   +1 more source