Results 51 to 60 of about 832 (152)

Terahertz bistatic three-dimensional computational imaging of hidden objects through random media

Scientific Reports
Random media pose limitations on the imaging capability of photoelectric detection devices. Currently, imaging techniques employed through random media primarily operate within the laser wavelength range, leaving the imaging potential of terahertz waves ...
Quanchun Yu, He Cai, Xianli Zhu, Zihao Liu, Hongcheng Yin, Liangsheng Li   +5 more
doaj   +1 more source

Terahertz generation by optically injected semiconductor laser for radar and communication applications

The Journal of Engineering, 2019
A frequency-tunable terahertz (THz) wave generation scheme based on an optically injected semiconductor laser is proposed for radar and communication applications.
Fangzheng Zhang, Pei Zhou, Shilong Pan, Daocheng Zhang   +3 more
doaj   +1 more source

Assessing plant water status: Part 2 – Non‐destructive and remote sensing approaches

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Precise, real time and non‐destructive assessment of plant water status is important for advancing plant physiological understanding, optimizing water usage, improving crop resilience and supporting precision agriculture in the face of increasingly variable climatic conditions.
Naila Farooq, Bo Zhang, Bastian Leander Franzisky, Tasawer Abbas, Jochen Taiber, Martin Koch, Ian C Dodd, Christoph‐Martin Geilfus   +7 more
wiley   +1 more source

Multilayer Thickness Measurements below the Rayleigh Limit Using FMCW Millimeter and Terahertz Waves

Sensors, 2019
We present thickness measurements with millimeter and terahertz waves using frequency-modulated continuous-wave (FMCW) sensors. In contrast to terahertz time-domain spectroscopy (TDS), our FMCW systems provide a higher penetration depth and measurement ...
Nina S. Schreiner, Wolfgang Sauer-Greff, Ralph Urbansky, Georg von Freymann, Fabian Friederich   +4 more
doaj   +1 more source

Three‐Dimensional Optical Characterization of Magnetostrictive Deformation in Magnomechanical Systems

Laser &Photonics Reviews, EarlyView.
An optical approach is proposed for real‐time and high‐precision detection of the magnetostrictive deformation of an yttrium‐iron‐garnet sphere in three dimensions, based on the deformation induced spatial high‐order modes of the scattered field, postselection, and balanced homodyne detection.
Xiaomin Liu, Jing Zhang, Jie Li, Rongguo Yang, Jiangrui Gao, Tiancai Zhang   +5 more
wiley   +1 more source

High‐performance electro‐optic materials featuring enhanced thermal stability through dual‐donor structural crosslinking engineering

Smart Molecules, EarlyView.
A groundbreaking dual‐donor crosslinking strategy was reported to significantly enhance the thermal stability, achieving remarkable EO coefficients (257–301 pm/V), glass transition temperatures (Tg) ranging from 107–187°C, and ultrahigh chromophore densities (3.73–4.26 × 10²⁰ molecules/cm³) with exceptional long‐term stability after 500 h at 85°C ...
Yu Zhang, Ziyun Zheng, Zhihan Huang, Zhifan Liu, Youling Chen, Fuyang Huo, Fenggang Liu, Xiubin Xu   +7 more
wiley   +1 more source

An Optically Transparent, Lightweight, High‐Efficiency, and Ultra‐Broadband Polarization Converter Based on a Low‐Filling‐Factor Metallic Frame Metasurface

Advanced Theory and Simulations, Volume 9, Issue 8, August 2026.
The graphical abstract presents the unit‐cell architecture of the proposed transparent metasurface polarization converter, featuring a low‐filling‐factor rotated copper frame on PET, an air‐cavity spacer, and an ITO ground plane. The design enables optical transparency, lightweight construction, and ultra‐broadband, high‐efficiency cross‐polarization ...
Huu Lam Phan, Juhoon Baek, Doyoon Lee, Minkyung Kim   +3 more
wiley   +1 more source

Three-Dimensional Terahertz Coded-Aperture Imaging Based on Single Input Multiple Output Technology

Sensors, 2018
As a promising radar imaging technique, terahertz coded-aperture imaging (TCAI) can achieve high-resolution, forward-looking, and staring imaging by producing spatiotemporal independent signals with coded apertures.
Shuo Chen, Chenggao Luo, Bin Deng, Hongqiang Wang, Yongqiang Cheng, Zhaowen Zhuang   +5 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Pholidota‐Inspired Electronic Skin Possessing Terahertz‐Wave Reflection–Absorption–Transmission Switchability

Advanced Science, Volume 13, Issue 37, 3 July 2026.
The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li, Jiangsong Hou, Yifeng Ruan, Jiang Du, Jun Qiu   +4 more
wiley   +1 more source