Electron focusing in two-dimensional systems by means of an electrostatic lens

J. Spector, H. L. Stormer, K. W. Baldwin, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

132 Scopus citations

Abstract

We introduce an electrostatic lens for ballistic electrons in two-dimensional (2D) systems and demonstrate its focusing action in very high mobility GaAs-(AlGa)As heterostructures. This is the first refractive element for the control of 2D electrons. It exemplifies the close analogy between ballistic propagation in 2D electron systems and traditional geometrical optics.

Original languageEnglish (US)
Pages (from-to)1290-1292
Number of pages3
JournalApplied Physics Letters
Volume56
Issue number13
DOIs
StatePublished - 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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