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Design of electron band-pass filters for semiconductor superlattices

Gregory V Morozov et al 2002 J. Phys. D: Appl. Phys. 35 3052-3059   doi: 10.1088/0022-3727/35/23/304  Help

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Gregory V Morozov1, D W L Sprung1 and J Martorell2
1 Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
2 Departament d'Estructura i Constituents de la Materia, Facultat Física, University of Barcelona, Barcelona 08028, Spain

Abstract. We design an N-cell anti-reflection coating for electron transport through an arbitrary periodic semiconductor heterostructure. Stability conditions are derived which allow one to make an Nth order zero of the reflection amplitude at the design energy. Examples are given for up to N = 4 cells, showing that 95% average transmissivity can be obtained.

Print publication: Issue 23 (07 December 2002)
Received 21 August 2002
Published 18 November 2002

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