Results 1 to 10 of about 664 (131)

Analysis of Excitability in Resonant Tunneling Diode-Photodetectors [PDF]

open access: yesNanomaterials, 2021
We investigate the dynamic behaviour of resonant tunneling diode-photodetectors (RTD-PDs) in which the excitability can be activated by either electrical noise or optical signals.
Weikang Zhang   +5 more
doaj   +4 more sources

Terahertz Emitter Using Resonant-Tunneling Diode and Applications [PDF]

open access: yesSensors, 2021
A compact source is important for various applications utilizing terahertz (THz) waves. In this paper, the recent progress in resonant-tunneling diode (RTD) THz oscillators, which are compact semiconductor THz sources, is reviewed, including principles ...
Masahiro Asada, Safumi Suzuki
doaj   +4 more sources

Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator [PDF]

open access: yesSensors, 2020
We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique.
Adrian Dobroiu   +4 more
doaj   +4 more sources

Discrete Fourier Transform Radar in the Terahertz-Wave Range Based on a Resonant-Tunneling-Diode Oscillator [PDF]

open access: yesSensors, 2021
We used a resonant-tunneling-diode (RTD) oscillator as the source of a terahertz-wave radar based on the principle of the swept-source optical coherence tomography (SS-OCT).
Hiroki Konno   +4 more
doaj   +4 more sources

Passive mode-locking and terahertz frequency comb generation in resonant-tunneling-diode oscillator [PDF]

open access: yesNature Communications, 2022
The authors report passive mode-locking and frequency-comb generation induced by optical feedback in the resonant-tunneling-diode terahertz oscillator, a semiconductor-based oscillator covering the frequency range of 0.1 to 2 THz.
Tomoki Hiraoka   +4 more
doaj   +2 more sources

Resonant Tunneling Nanostructures: Eliminating Current Saturation on Negative Differential Conductivity Region in Compact Dissipative Simulations [PDF]

open access: yesNanomaterials
A solution to the problem of resonant tunneling current saturation is proposed. This problem does not allow, within the traditional compact models, a correct qualitative and quantitative analysis to be carried out of the volt-ampere characteristics of ...
Natalia Vetrova   +5 more
doaj   +2 more sources

Nanoscale nonlocal thermal transport and thermal field emission in high-current resonant tunnel structures [PDF]

open access: yesScientific Reports
We present a nonlinear model of thermal field emission in resonant tunneling nanostructures with multiple barriers and potential wells, based on an accurate determination of the quantum potential shape and a rigorous solution of the Schrödinger equation,
Michael V. Davidovich   +3 more
doaj   +2 more sources

Absolute and Precise Terahertz-Wave Radar Based on an Amplitude-Modulated Resonant-Tunneling-Diode Oscillator

open access: yesPhotonics, 2018
We present the principle of a terahertz-wave radar and its proof-of-concept experimental verification. The radar is based on a 522 GHz resonant-tunneling-diode oscillator, whose terahertz output power can be easily modulated by superimposing the ...
Adrian Dobroiu   +4 more
doaj   +3 more sources

Effect of quantum barrier width and quantum resonant tunneling through InGaN/GaN parabolic quantum well-LED structure on LED efficiency

open access: yesResults in Physics, 2021
The effect of quantum barrier width and electric field on the resonant tunneling through the double barrier In0.2Ga0.8N/GaN parabolic-quantum well light-emitting diode (LED) structure and LED efficiency was investigated analytically.
Hind Althib
doaj   +1 more source

Time Response of a Resonant Tunneling Diode Based Photo- Detector (RTD-PD) [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2021
در این مقاله ، یک دیود تونل زنی تشدید با ساختار سد مضاعف AlAs / GaAs با استفاده از عملکرد سبز غیر تعادلی شبیه سازی شده است. یک لایه جذب InGaAs منطبق شده برای تشخیص نور در طول موج λ = 600 نانومتر به دستگاه اضافه می شود .
Mohamad Ahmadzadeh   +2 more
doaj   +1 more source

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