Results 61 to 70 of about 893,299 (282)

Metasurface absorber with ultra-thin thickness designed for a terahertz focal plane array detector.

Optics Express, 2022
Terahertz (THz) refers to electromagnetic waves with frequency from 0.1 to 10 THz, which lies between millimeter waves and infrared light. This paper proposes an ultra-thin metasurface absorber which is perfectly suited to be the signal coupling part of ...
Hailiang Zhu, Kai Wang, Ganyu Liu, Jinchao Mou, Yinghong Wu, Zhenwei Zhang, Yuwei Qiu, Gao Wei   +7 more
semanticscholar   +1 more source

MILLIMETER AND TERAHERTZ RADIATION DETECTOR

Vestnik SSUGT (Siberian State University of Geosystems and Technologies), 2021
The aim of this work is an analytical review of terahertz and millimeter-wave radiation receivers. Classification of terahertz radiation receivers and their comparative characteristics are made. Various aspects of the application of terahertz radiation, as well as the main types and types of receivers of this radiation, are considered in this paper ...
Igor V. Minin, Oleg V. Minin
openaire   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Real-Time 0.89 THz Terahertz Imaging with High-Electron-Mobility Transistor Detector and Hydrogen Cyanide Laser for Non-Destructive Nut Detection

Micromachines
We present a method for real-time terahertz imaging that employs a hydrogen cyanide (HCN) laser as a terahertz source at 0.89 THz and an AlGaN/GaN high-electron-mobility transistor (HEMT) terahertz detector as a camera.
Nu Zhang, Haiqing Liu, Huihui Yan, Hongbei Wang, Jiaxing Xie, Yinxian Jie, Damao Yao   +6 more
doaj   +1 more source

Terahertz optical machine learning for object recognition

APL Photonics, 2020
We demonstrate an optical machine learning method in the terahertz domain, which allows the recognition of objects within a single measurement. As many materials are transparent in the terahertz spectral region, objects hidden within such materials can ...
B. Limbacher, S. Schoenhuber, M. Wenclawiak, M. A. Kainz, A. M. Andrews, G. Strasser, J. Darmo, K. Unterrainer   +7 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Terahertz Meta-Holograms Reconstruction Based on Compressed Sensing

IEEE Photonics Journal, 2020
The introduction of single-pixel imaging and compressed sensing (CS) techniques into terahertz (THz) imaging has sped up image acquisition and avoided raster scanning. At present, most single-pixel terahertz imaging developments are based on simple metal
Mengyuan Hu, Zhen Tian, Xieyu Chen, Xingye Yang, Zhihao Yi, Qiu Wang, Chunmei Ouyang, Jianqiang Gu, Jiaguang Han, Weili Zhang   +9 more
doaj   +1 more source

Comparison between Up-Conversion Detection in Glow-Discharge Detectors and the Schottky Diode for MMW/THz High-Power Single Pulse

Applied Sciences, 2021
Generally, glow-discharge detectors (GDD), acting on miniature neon indicator lamps, and Schottky diode detectors serve as efficient, fast, and room-temperature millimeter wave (MMW)/THz detectors.
Adnan Haj Yahya, Avi Klein, Nezah Balal, Dmitri Borodin, Aharon Friedman   +4 more
doaj   +1 more source

Ultrafast terahertz detectors

Acta Physica Sinica, 2018
Terahertz (THz) technologies have broad application prospects in ultrafast space communication, heterodyne detection, biological detection, non-destructive testing and national security. Ultrafast THz detectors, which can respond to the THz light with modulation rate larger than 1 GHz, are the key component of fast imaging, space communication ...
null Zhang Zhen-Zhen, null Li Hua, null Cao Jun-Cheng   +2 more
openaire   +1 more source

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza, Karol Strutyński, Shuai Fu, Yifan Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +11 more
wiley   +1 more source