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Proceedings Paper

Proposed terahertz bloch superlattice oscillator
Author(s): Alexander A. Andronov; I. Nefedov; A. Sosnin
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Paper Abstract

Terahertz Bloch oscillator based on GaAs-GaAlAs superlattice with weak barriers is proposed. Here due to interminiband tunneling current is a rising function of electric field while the tunneling and the Bloch oscillations produce dynamic negative differential conductivity at the Terahertz frequencies. Monte-Carlo simulation demonstrates existence of the negative conductivity in 1 - 7 THz range in the superlattices with moderate mobility at 77 K. The oscillator should consist of the 200 - 600 superlattice periods sandwiched between two n+ contact regions which form also strip-line waveguide (the oscillator cavity) and could be operational at 77 K in CW mode.

Paper Details

Date Published: 11 June 2003
PDF: 4 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); doi: 10.1117/12.514396
Show Author Affiliations
Alexander A. Andronov, Institute for Physics of Microstructures (Russia)
I. Nefedov, Institute for Physics of Microstructures (Russia)
A. Sosnin, Institute for Physics of Microstructures (Russia)


Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)

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