Antireflection coating for miniband transport and Fabry-Perot resonances in GaAs/AlGaAs superlattices

Authors
Pacher, C Rauch, C Strasser, G Gornik, E Elsholz, F Wacker, A Kiesslich, G Scholl, E
Citation
C. Pacher et al., Antireflection coating for miniband transport and Fabry-Perot resonances in GaAs/AlGaAs superlattices, APPL PHYS L, 79(10), 2001, pp. 1486-1488
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
79
Issue
10
Year of publication
2001
Pages
1486 - 1488
Database
ISI
SICI code
0003-6951(20010903)79:10<1486:ACFMTA>2.0.ZU;2-C
Abstract
It is demonstrated that standard concepts for optics like Fabry-Perot reson ances and antireflection coatings can be extended to ballistic electron tra nsport in semiconductor superlattices. The transmission through a superlatt ice miniband is increased by a factor of 2.4 if two further barriers are ad ded at both sides of the structure. The condition for Fabry-Perot resonance s for Bloch states in finite periodic potentials is derived and experimenta l evidence for their existence is obtained in transport experiments. (C) 20 01 American Institute of Physics.