Journal Article

PreJuSER-40113

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Broadband semiconductor superlattice detector for THz radiation

Klappenberger, F. ; Ignatov, A. A. ; Winnerl, S.FZJ* ; Schomburg, E. ; Wegscheider, W. ; Renk, K. F. ; Bichler, M.

2001
American Institute of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/1982  doi:10.1063/1.1352669

Abstract: We report on a broadband GaAs/AlAs superlattice detector for THz radiation; a THz field reduces the current through a superlattice, which is carried by miniband electrons, due to modulation of the Bloch oscillations of the miniband electrons. We studied the detector response, by use of a free electron laser, in a large frequency range (5-12 THz). The responsivity showed strong minima at frequencies of infrared active phonons of the superlattice. A theoretical analysis of the detector delivers an understanding of the role of phonons and gives a characterization of the responsivity. (C) 2001 American Institute of Physics.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Halbleiterschichten und Bauelemente (ISG-1)

Research Program(s):

1. Ionentechnik (29.87.0)

Appears in the scientific report 2001
Notes: This version is available at the following Publisher URL: http://apl.aip.org

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