Analysis of discontinuities in quantum waveguide structures

A. Weisshaar, J. Lary, Stephen Goodnick, V. K. Tripathi

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

We have used the modal expansion of the wave function in the discontinuity region based on the superposition principle together with a mode-matching technique to investigate the transmission characteristics of semiconductor quantum wire structures with discontinuities. Our calculations compare quite well with published results for the theoretical transmission coefficient and experimental conductance of a T-stub and split-gate geometry, respectively. We apply this technique to analyze the effect of right-angle bends in narrow quantum wires which show strong resonant behavior due to the presence of discontinuities in this geometry.

Original languageEnglish (US)
Pages (from-to)2114-2116
Number of pages3
JournalApplied Physics Letters
Volume55
Issue number20
DOIs
StatePublished - 1989
Externally publishedYes

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discontinuity
waveguides
quantum wires
geometry
wave functions
expansion
coefficients

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Analysis of discontinuities in quantum waveguide structures. / Weisshaar, A.; Lary, J.; Goodnick, Stephen; Tripathi, V. K.

In: Applied Physics Letters, Vol. 55, No. 20, 1989, p. 2114-2116.

Research output: Contribution to journalArticle

Weisshaar, A. ; Lary, J. ; Goodnick, Stephen ; Tripathi, V. K. / Analysis of discontinuities in quantum waveguide structures. In: Applied Physics Letters. 1989 ; Vol. 55, No. 20. pp. 2114-2116.
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