Overview of imaging methods based on terahertz time-domain spectroscopy

Q Wang, L **e, Y Ying - Applied Spectroscopy Reviews, 2022 - Taylor & Francis
Due to the unique characteristics of terahertz (THz) waves, such as low-energy, penetrating,
and broadband, THz imaging has been regarded as cutting-edge technology in many fields …

Review of GaN-based devices for terahertz operation

K Ahi - Optical Engineering, 2017 - spiedigitallibrary.org
GaN provides the highest electron saturation velocity, breakdown voltage, operation
temperature, and thus the highest combined frequency-power performance among …

Field effect transistors for terahertz detection: Physics and first imaging applications

W Knap, M Dyakonov, D Coquillat, F Teppe… - Journal of Infrared …, 2009 - Springer
Resonant frequencies of the two-dimensional plasma in FETs increase with the reduction of
the channel dimensions and can reach the THz range for sub-micron gate lengths …

Plasmonic field-effect transistors (TeraFETs) for 6G communications

M Shur, G Aizin, T Otsuji, V Ryzhii - Sensors, 2021 - mdpi.com
Ever increasing demands of data traffic makes the transition to 6G communications in the
300 GHz band inevitable. Short-channel field-effect transistors (FETs) have demonstrated …

Terahertz responsivity of field effect transistors versus their static channel conductivity and loading effects

M Sakowicz, MB Lifshits, OA Klimenko… - Journal of Applied …, 2011 - pubs.aip.org
We study the broadband photovoltaic response of field effect transistors on terahertz
radiation. A simple physical analytical model of the response is developed. It is based on …

Sensor applications based on AlGaN/GaN heterostructures

KT Upadhyay, MK Chattopadhyay - Materials Science and Engineering: B, 2021 - Elsevier
Abstract Gallium Nitride (GaN) belongs to III-N family of compound semiconductors, which
albeit new, is well-established material system in the fields of high power, high temperature …

AlGaN/GaN high electron mobility transistors as a voltage-tunable room temperature terahertz sources

A El Fatimy, N Dyakonova, Y Meziani, T Otsuji… - Journal of Applied …, 2010 - pubs.aip.org
We report on room temperature terahertz generation by a submicron size AlGaN/GaN-based
high electron mobility transistors. The emission peak is found to be tunable by the gate …

Temperature dependence of plasmonic terahertz absorption in grating-gate gallium-nitride transistor structures

AV Muravjov, DB Veksler, VV Popov… - Applied Physics …, 2010 - pubs.aip.org
Strong plasmon resonances have been observed in the terahertz transmission spectra (1–5
THz) of large-area slit-grating-gate AlGaN/GaN-based high-electron-mobility transistor …

2D Embedded Ultrawide Bandgap Devices for Extreme Environment Applications

M Labed, JY Moon, SI Kim, JH Park, JS Kim… - ACS …, 2024 - ACS Publications
Ultrawide bandgap semiconductors such as AlGaN, AlN, diamond, and β-Ga2O3 have
significantly enhanced the functionality of electronic and optoelectronic devices, particularly …

Plasmonic HEMT terahertz transmitter based on the Dyakonov-Shur instability: Performance analysis and impact of nonideal boundaries

M Nafari, GR Aizin, JM Jornet - Physical Review Applied, 2018 - APS
The performance of an on-chip Terahertz (THz) source based on the Dyakonov-Shur (DS)
instability is analytically and numerically investigated. The impact of nonideal termination …