QUANTUM-INTERFERENCE SEMICONDUCTOR DEVICES REVISITED*

T. Figielski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

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Received: April 20, 2001

First, a simple semiclassical approach has been applied to the problem of a quantum phase acquired by an electron carrying both the charge and spin, which travels in an electromagnetic field. Basic hypothetical devices whose operation relies on the quantum interference, including spin-related interference, are discussed in the following. Finally, experimental results demonstrating two-beam interference in a planar quantum dot are presented. *This paper has been initially presented as an invited talk at the Conference on Optoelectronic and Microelectronic Materials and Devices (COMMAD 2000), Melbourne, Australia, 6-8 December 2000.

DOI: 10.12693/APhysPolA.99.699 PACS numbers: 73.23.-b, 85.30.De