A coupled mode theory for electron wave directional couplers

Author

Sarangan, Andrew M. ; Huang, Wei-Ping

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

30

Issue

12

fYear

1994

fDate

12/1/1994 12:00:00 AM

Firstpage

2803

Lastpage

2810

Abstract

In this paper, a coupled mode theory for electron wave directional couplers is presented. This theory includes the dephasing effects on electrons due to temporally random collisions with lattice ions and other electrons in the system. This is done by considering the phase coherence length L_c as a single lumped parameter of the material. Using this model, the effects of temperature and other random dephasing collisions in electron wave devices can be studied easily. As an example, this model is applied to study the switching behavior of the electron wave directional coupler switch

Keywords

coupled mode analysis; directional couplers; electron waveguides; switching; coupled mode theory; dephasing effects; directional coupler switch; electron wave devices; electron wave directional couplers; lattice ions; phase coherence length; random dephasing collisions; single lumped parameter; switching behavior; temporally random collisions; Directional couplers; Electron devices; Electron optics; Optical refraction; Semiconductor materials; Switches; Temperature; Ultrafast optics; Ultraviolet sources; Wire;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.362729

Filename

362729