
%0 Journal Article
%A F Dobson, John 
%T Plasmons on Wide Epitaxially-grown Quantum Wells
%J Australian Journal of Physics
%D 1993/06/01
%V 46
%N 3
%P 391-422
%K 
%R https://doi.org/10.1071/PH930391
%U https://www.publish.csiro.au/paper/PH930391 
%X Quantum wells can now be grown by molecular beam epitaxy in the Gal~xAlxAs system with almost any desired electron confinement potential V (z) in the growth or z direction. The wells can be filled by remote doping, giving finely controllable high-mobility electron gases with a dimensionality between two and three. Grating coupler techniques permit observation at finite surface wavenumber of the infrared plasmon modes of these structures. This provides in principle a window onto fundamental and applicable many-electron physics. Of special interest are the 'pseudo-jellium' properties of parabolic and parabolic~linear wells, which are discussed in detail here. A theorem applicable to more general wells is also introduced. 
