Terahertz sources based on dynamic negative differential conductivity due to hot electron bunching in momentum space

Author

Andronov, A. ; Nefedov, I. ; Sosnin, A.

Author_Institution

Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia

fYear

2001

fDate

2001

Firstpage

51

Lastpage

54

Abstract

One possible approach to terahertz sources for the 0.5-10 THz range is to use the dynamic negative differential conductivity (DNDC) due to electron bunching in momentum space. Such sources could be based on the two different mechanisms: Optical Phonon Transit Time Resonance (OPTTR) in the bulk and Bloch oscillations (BO) under multiminiband transport in superlattices. This report gives a short discussion of DNDC under OPTTR with recent simulation of its possibility in the Terahertz range in GaN and concentrates on our recent results on discussion and simulation of DNDC under multiminiband superlattice transport and feasibility of its utilization in the Terahertz BO

Keywords

hot carriers; negative resistance; semiconductor superlattices; submillimetre wave generation; 0.5 to 10 THz; Bloch oscillation; GaN; dynamic negative differential conductivity; hot electron bunching; miniband superlattice transport; momentum space; optical phonon transit time resonance; terahertz source; Acoustic scattering; Conductivity; Electric fields; Electron optics; Frequency; Optical scattering; Optical superlattices; Phonons; Quantum cascade lasers; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Device Research Symposium, 2001 International

Conference_Location

Washington, DC

Print_ISBN

0-7803-7432-0

Type

conf

DOI

10.1109/ISDRS.2001.984436

Filename

984436