Results 61 to 70 of about 677,067 (160)

Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating [PDF]

, 2012
We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The
Saha, S.C., Khalid, A., Grant, J.P., Cumming, D.   +3 more
core   +1 more source

Single Channel Slow Moving Target Detection Method for Terahertz Video Synthetic Aperture Radar Based on Shadows and Spots

Remote Sensing
Terahertz waves are located in the “transition zone” between millimeter waves and infrared light. Terahertz video synthetic aperture radar (THz-ViSAR) utilizes the high operating frequency, strong radar cross-section intensity, and high azimuth ...
Xiaofan Li, Shuangxun Li, Bin Deng, Qiang Fu, Hongqiang Wang   +4 more
doaj   +1 more source

High Resolution Lensless Terahertz Imaging and Ranging

IEEE Access, 2019
In this paper, we propose a fast terahertz time-domain imaging method using a radar migration algorithm. We demonstrate high-resolution imaging in reflection without any collimating or focusing optics in the terahertz beam.
Dilyan Damyanov, Benedikt Friederich, Milad Yahyapour, Nico Vieweg, Anselm Deninger, Kevin Kolpatzeck, Xuan Liu, Andreas Czylwik, Thorsten Schultze, Ingolf Willms, Jan C. Balzer   +10 more
doaj   +1 more source

Dimensional Engineering of Carbon‐Based Hybrids: From 1D Conductive Networks to 3D Porous Architectures for Next‐Generation Microwave Absorption

Advanced Science, Volume 13, Issue 52, 18 September 2026.
This review explores dimensional architecture engineering to overcome the impedance‐attenuation trade‐off in electromagnetic wave absorbing materials. By analyzing 1D to 3D structures and their multidimensional hybrids, we highlight synergistic mechanisms for enhanced performance.
Chuanyu Liu, Xiaoxin Guo, Xunlong Zhang, Ruiling Sun, Xingyu Zhang, Can Ge, Xuhong Yang, Yuqing Liu   +7 more
wiley   +1 more source

MIMO noise radar - matched filters and coarrays [PDF]

, 2008
Copyright © 2008 IEEEThe noise radar concept can be extended to an array of K transmit antenna and M receive antenna. When independent noise sources are transmitted from each antenna the approach may be viewed as a special case of MIMO radar and matched ...
Capria, A., Amerigo Capria, Gray, D., Douglas A. Gray   +3 more
core   +1 more source

Linear and Circular UWB Millimeter-Wave and Terahertz Monostatic Near-Field Synthetic Aperture Imaging

Sensors, 2020
Millimeter-wave and terahertz frequencies offer unique characteristics to simultaneously obtain good spatial resolution and penetrability. In this paper, a robust near-field monostatic focusing technique is presented and successfully applied for the ...
Jose Antonio Solano-Perez, María-Teresa Martínez-Inglés, Jose-Maria Molina-Garcia-Pardo, Jordi Romeu, Lluis Jofre, José-Víctor Rodríguez, Antonio Mateo-Aroca   +6 more
doaj   +1 more source

Ultrastable Self‐Cross‐linkable Electro‐Optic Materials Based on a Bisanthracene Scaffold

Advanced Electronic Materials, Volume 12, Issue 18, 21 September 2026.
A novel bisanthracene‐based self‐cross‐linkable electro‐optic chromophore (TD2) is developed. TD2 exhibits a high r33 of 141 pm/V and a cross‐linked Tg up to 195 °C, retaining 99.75% of its initial EO response after 500 h at 85 °C, showing record‐high thermal stability for single‐molecule self‐cross‐linking EO materials.
Xingtao Wang, Zhifan Liu, Qinghua Yang, Jiayan Xu, Lin Li, Fenggang Liu, Shengyu Cong   +6 more
wiley   +1 more source

Terahertz single/dual beam scanning with tunable field of view by cascaded metasurfaces

APL Photonics
Dynamic beam scanning with a dynamically tunable beam number, beam direction, and beam polarization remains a challenge in the terahertz gap, which is urgently needed for terahertz radar, next-generation wireless communication, and imaging applications ...
Haifeng Xu, Jierong Cheng, Shengnan Guan, Fan Li, Xianghui Wang, Shengjiang Chang   +5 more
doaj   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

InfoScience, Volume 3, Issue 3, September 2026.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong, Zhenyu Wang, Xu Li, Guo Tang, Sizhe Wang, Jiyuan Huang, Guochao Wang, Shuhua Yan, Wenzhao Sun   +8 more
wiley   +1 more source

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

Smart Molecules, Volume 4, Issue 3, September 2026.
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