Abstract
Based on time-dependent numerical simulation of an double barrier quantum well structure, a time-dependent energy coupling model is presented to account for the operational principle of a new kind of resonant tunneling THz oscillators.
Highlights
Based on time-dependent numerical simulation of an double barrier quantum well structure, a time-dependent energy coupling model is presented to account for the operational principle of a new kind of resonant tunneling THz oscillators
Our simulated I-V characteristics of the structure used in this paper shows all main features of the experimental results: a plateau-like structure and two hysteresis regions
If the bias voltage is greater than the center bias voltage (CBV) in the bias voltage window (BVW), the current densities do not show the initial damping and harmonic oscillation process that can be observed when bias voltage is less than the CBV
Summary
Based on time-dependent numerical simulation of an double barrier quantum well structure, a time-dependent energy coupling model is presented to account for the operational principle of a new kind of resonant tunneling THz oscillators. Tel.: (201) 216-5637, Fax: (201) 216-5638, e-mail: hcui@stevens-tech.edu *Tel." 919-549-4297, Fax: 919-549-4310. Figure shows the relationship between current density and simulation time.
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