Equivalent network approach for guided electron waves in quantum-well structures and its application to electron-wave directional couplers

Author

Kaji, Ryosaku ; Koshiba, Masanori

Author_Institution

Dept. of Electron. Eng., Hokkaido Univ., Sapporo, Japan

Volume

30

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

1036

Lastpage

1043

Abstract

By utilizing an analogy in electromagnetic wave propagation, an equivalent network procedure is described for guided electron waves in quantum-well structures. It relies heavily on the earlier achievements of the microwave network approach, and it involves the application of concepts and techniques in electromagnetic waves to corresponding categories of electron waves. To demonstrate the validity and usefulness of this approach, it is used to derive the properties of electron waveguides consisting of single or double quantum wells. Based on the results of the analysis of propagation characteristics of the guided electron waves in these structures, the coupling properties of the double-quantum-well electron waveguide are also examined under the coupled-mode procedure

Keywords

directional couplers; network analysis; quantum interference devices; semiconductor quantum wells; waveguide theory; coupled-mode procedure; double-quantum-well electron waveguide; electromagnetic wave propagation; electron-wave directional couplers; equivalent network procedure; guided electron waves; propagation characteristics; quantum-well structures; single quantum wells; Directional couplers; Effective mass; Electromagnetic propagation; Electromagnetic waveguides; Electrons; Intelligent networks; Quantum mechanics; Quantum well devices; Quantum wells; Semiconductor waveguides;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.291373

Filename

291373