Proposed terahertz bloch superlattice oscillator

Alexander A. Andronov; I. Nefedov; A. Sosnin

doi:10.1117/12.514396

11 June 2003 Proposed terahertz Bloch superlattice oscillator

Alexander A. Andronov, I. Nefedov, A. Sosnin

Proceedings Volume 5023, 10th International Symposium on Nanostructures: Physics and Technology; (2003) https://doi.org/10.1117/12.514396
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

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.

Citation Download Citation

Alexander A. Andronov, I. Nefedov, and A. Sosnin "Proposed terahertz Bloch superlattice oscillator", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); https://doi.org/10.1117/12.514396

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