Results 1 to 10 of about 1,832 (163)

Regenerative terahertz quantum detectors [PDF]

open access: yesAPL Photonics, 2021
Because of the ultrafast and photon-driven nature of the transport in their active region, we demonstrate that quantum cascade lasers can be operated as resonantly amplified terahertz detectors with wide RF bandwidth.
Paolo Micheletti   +5 more
doaj   +5 more sources

Sensitivity of Field-Effect Transistor-Based Terahertz Detectors [PDF]

open access: yesSensors, 2021
This paper presents an overview of the different methods used for sensitivity (i.e., responsivity and noise equivalent power) determination of state-of-the-art field-effect transistor-based THz detectors/sensors. We point out that the reported result may
Elham Javadi   +5 more
doaj   +2 more sources

A Compact 380 GHz Zero-Bias Schottky Diode Detector for High-Sensitivity Radiometer Applications [PDF]

open access: yesMicromachines
Reliable terahertz radiometer receiver systems demand detectors that combine high sensitivity with structural robustness. This paper presents the design, fabrication, and characterization of a 380 GHz zero-bias detector based on an ACST Schottky diode ...
Huilin Tang, Yongsheng Deng, Dehai Zhang
doaj   +2 more sources

Recent Developments and Applications of Terahertz Spectroscopy in Food Analysis [PDF]

open access: yesBiosensors
The terahertz waves are electromagnetic waves with frequencies ranging from 0.1 to 10 THz, exhibiting characteristics of both microwave and infrared, including fingerprint characteristics, coherence, and safety.
Pengpeng Yu   +5 more
doaj   +2 more sources

Ultrasensitive photoelectric detection with room temperature extremum [PDF]

open access: yesLight: Science & Applications
Room-temperature photodetection holds pivotal significance in diverse applications such as sensing, imaging, telecommunications, and environmental remote sensing due to its simplicity, versatility, and indispensability. Although different kinds of photon
Tuntan Wu   +8 more
doaj   +2 more sources

A Terahertz Optomechanical Detector Based on Metasurface and Bi-Material Micro-Cantilevers

open access: yesMicromachines, 2022
Terahertz imaging technology has shown great potential in many fields. As the core component of terahertz imaging systems, terahertz detectors have received extensive attention.
Hailiang Zhu   +6 more
doaj   +1 more source

Recent Progress in the Development of Graphene Detector for Terahertz Detection

open access: yesSensors, 2021
Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz ...
Jianlong Liu   +9 more
doaj   +1 more source

The Application of Microplasma in the Terahertz Field: A Review

open access: yesApplied Sciences, 2021
Terahertz functional devices are essential to the advanced applications of terahertz radiation in biology and medicine, nanomaterials, and wireless communications.
Yue Guo   +4 more
doaj   +1 more source

Tamm-cavity terahertz detector

open access: yesNature Communications, 2023
Abstract Efficiently fabricating a cavity that can achieve strong interactions between terahertz waves and matter would allow researchers to exploit the intrinsic properties due to the long wavelength in the terahertz waveband.
Xuecou Tu   +21 more
openaire   +3 more sources

Optical Pump–Terahertz Probe Study of HR GaAs:Cr and SI GaAs:EL2 Structures with Long Charge Carrier Lifetimes

open access: yesPhotonics, 2021
The time dynamics of nonequilibrium charge carrier relaxation processes in SI GaAs:EL2 (semi-insulating gallium arsenide compensated with EL2 centers) and HR GaAs:Cr (high-resistive gallium arsenide compensated with chromium) were studied by the optical ...
Irina A. Kolesnikova   +8 more
doaj   +1 more source

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