Title :
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
fDate :
12/1/1994 12:00:00 AM
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 Lc 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;
Journal_Title :
Quantum Electronics, IEEE Journal of
