Results 281 to 290 of about 1,429,782 (326)

High Performance of Room-Temperature NbSe2 Terahertz Photoelectric Detector.

ACS Applied Materials and Interfaces, 2022
Photoelectric detection is developing rapidly from ultraviolet to infrared band. However, terahertz (THz) photodetection approaches is constrained by the bandgap, dark current, and absorption ability.
Jingbo Li, Wanli Ma, Lin Jiang, Niangjuan Yao, Jie Deng, Qinxi Qiu, Yi Shi, Wei Zhou, Zhiming Huang   +8 more
semanticscholar   +1 more source

Dual‐Field Enhanced Room‐Temperature Terahertz Detector via Magnetic Weyl Semimetal Metasurfaces

Advanced Quantum Technologies
To improve the performance of room‐temperature terahertz detectors, particularly regarding sensitivity and noise characteristics, an innovative detector incorporating a sawtooth array fabricated through femtosecond‐laser direct writing is developed. This
Wenzhe Wang, Wenhao Xu, Zuoang Sun, Tianyu Wei, Min Zhang, Shaodong Hou, Qi Song, Bo Dong   +7 more
semanticscholar   +1 more source

3-D Bowtie Microarray Terahertz Detector Enhanced by Laser Excitation

IEEE Sensors Journal
In order to enhance the detection capabilities of large-area detectors operating at room temperature, particularly in terms of response time and sensitivity parameters, we have developed an innovative terahertz detector featuring bowtie arrays based on ...
Hong-Yi Lin, Zichen Zhang, Dong Sun, Jian-Jian Ruan, Bing-Yuan Zhang, Qi Song   +5 more
semanticscholar   +1 more source

Magnet-Enhanced Droplet-Shaped Frequency Selective Terahertz Detector for 6G Technology

IEEE Sensors Journal
Metasurfaces integrated with high-performance films exhibit unique optoelectronic properties and hold great potential for applications in terahertz detection. Achieving high responsivity, sensitivity, and frequency-selective detection all at once remains
Zhongze Peng, Min Zhang, Feilong Gao, Shaodong Hou, Bing-Yuan Zhang, Qi Song   +5 more
semanticscholar   +1 more source

A Multiband Terahertz Detector in 65-nm CMOS for Spectroscopic Imaging

IEEE Transactions on Terahertz Science and Technology
This article proposes a low-area multiband terahertz (THz) detector structure for spectroscopic imaging, which consists of several narrow-band THz detectors with different detection frequencies.
Zhao-Yang Liu, F. Qi, Ye-Long Wang, Peng-Xiang Liu, Wei-Fan Li   +4 more
semanticscholar   +1 more source

Terahertz Sources and Detectors

2012
This chapter describes techniques and systems regarding terahertz sources and detectors, mainly reviewing basic concepts and principles to help understand THz imaging instruments. The terahertz technologies outlined in this chapter provide background knowledge to the experimental work on the identification and reconstruction of terahertz spectroscopic ...
Xiaoxia Yin, Brian W.-H. Ng, Derek Abbott   +2 more
openaire   +1 more source

Terahertz sources and detectors

SPIE Proceedings, 2005
Through the support of the US Army Research Office we are developing terahertz sources and detectors suitable for use in the spectroscopy of chemical and biological materials as well as for use in imaging systems to detect concealed weapons. Our technology relies on nonlinear diodes to translate the functionality achieved at microwave frequencies to ...
Thomas W. Crowe, David W. Porterfield, Jeffrey L. Hesler, William L. Bishop, David S. Kurtz, Kai Hui   +5 more
openaire   +1 more source

A high-responsivity and broadband photoconductive terahertz detector based on a plasmonic nanocavity

Applied Physics Letters, 2018
We present a photoconductive terahertz detector to be used in terahertz time-domain imaging and spectroscopy systems without utilizing a short-carrier lifetime semiconductor for the photoconductive active region.
N. Yardimci, D. Turan, S. Cakmakyapan, M. Jarrahi   +3 more
semanticscholar   +1 more source

Design guidelines for terahertz mixers and detectors

IEEE Transactions on Microwave Theory and Techniques, 2005
Twin-slot antennas and coplanar waveguides are a popular choice for coupling signals to state-of-the-art mixers and detectors at terahertz frequencies. Although these sensors show promising performance in terms of noise temperature, they usually also show a considerable downward shift in the center frequency of their spectral response, especially when ...
Focardi, P., McGrath, W.R., Neto, A.
openaire   +3 more sources

Strain-Induced InGaAs-Based Photoconductive Terahertz Antenna Detector

IEEE Transactions on Terahertz Science and Technology, 2021
We report on a terahertz (THz) detector based on a photoconductive antenna (PCA) utilizing an artificially strained undoped InGaAs/InAlAs superlattice (SL).
D. Lavrukhin, A. Yachmenev, Y. Goncharov, K. Zaytsev, R. Khabibullin, A. Buryakov, E. Mishina, D. Ponomarev   +7 more
semanticscholar   +1 more source