Klappenberger, F. and Ignatov, A. A. and Winnerl, S. and Schomburg, E. and Wegscheider, Werner and Renk, Karl F. and Bichler, M. (2001) Broadband semiconductor superlattice detector for THz radiation. APPLIED PHYSICS LETTERS, 78 (12). pp. 1673-1675. ISSN 0003-6951
Full text not available from this repository. (Request a copy)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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GAAS/ALAS SUPERLATTICE; CURRENT OSCILLATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Feb 2022 09:33 |
| Last Modified: | 08 Feb 2022 09:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41634 |
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