Ultrafast, Ultra-Broadband Superlattice Detector for THz Radiation

reportActive / Technical Report | Accession Number: ADP011747 | Open PDF

Abstract:

We report on a novel detector for THz radiation. It consists of a GaAsAlAs superlattice mesa device mounted in a corner cube antenna system. The detector shows a current-voltage characteristic with a negative differential conductance. Under the influence of THz radiation, the dc current through the superlattice mesa is reduced this is caused by a THz field-induced modulation of Bloch oscillating miniband electrons in the superlattice. A fast detector response several tenth of picoseconds, limited by the electronics and a high responsivity is demonstrated in a frequency range 0.7-7 THz.

Author(s):
Schomburg, E. ; Klappenberger, F. ; Kraetschmer, M. ; Ignatov, A. A. ; Renk, K. F.
Author Organization(s):
REGENSBURG UNIV (GERMANY) INST FUER ANGEWANDTE
Supplementary Note:
Prepared in cooperation with GMM, VDE/VDE-Gesellschaft Mikroelektronik, Mikro- und Feinwerktechnik; ITS, Informationstechnische Gesellschaft im VDE. This article is from the THz Conference 2000 pp91-93. This article is from ADA398789 International Conference on Terahertz Electronics (8th), Held in Darmstadt, Germany on 28-29 September 2000
Pagination:
0003

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DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N000134-00-1-1104
Monitor Series:
ONR
 Subject Terms
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*DETECTORS, *SUPERLATTICES, *FAR INFRARED RADIATION, SYMPOSIA, GALLIUM ARSENIDES, SEMICONDUCTOR DEVICES, FREQUENCY BANDS, INFRARED DETECTORS, ALUMINUM ARSENIDES, N TYPE SEMICONDUCTORS, MODULATION, ELECTRON TRANSITIONS, DIRECT CURRENT, DIPOLE ANTENNAS, CORNER REFLECTORS, MOLECULAR BEAM EPITAXY
Field(s)/Group(s):
Electrical and Electronic Equipment, Crystallography, Optics
Keyword(s):
*TERAHERTZ RADIATION, *ULTRAFAST DETECTORS, *ULTRABROADBAND DETECTORS, COMPONENT REPORT, FOREIGN REPORTS, AQ F02 02 0127, THZ RADIATION, CORNER CUBE ANTENNA SYSTEMS, BLOCH OSCILLATION, MINIBANDS, TERAHERTZ TRANSITIONS, MESA DEVICES, DIFFERENTIAL CONDUCTANCE
Report Date:
2000 Sep 29
Creation Date:
2002 Feb 20