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Title: Effect of antimony nano-scale surface-structures on a GaSb/AlAsSb distributed Bragg reflector

Effects of antimony crystallization on the surface of GaSb during low temperature molecular beam epitaxy growth are investigated. The geometry of these structures is studied via transmission electron and atomic force microscopies, which show the surface metal forms triangular-shaped, elongated nano-wires with a structured orientation composed entirely of crystalline antimony. By depositing antimony on a GaSb/AlAsSb distributed Bragg reflector, the field is localized within the antimony layer. Polarization dependent transmission measurements are carried out on these nano-structures deposited on a GaSb/AlAsSb distributed Bragg reflector. It is shown that the antimony-based structures at the surface favor transmission of light polarized perpendicular to the wires.
Authors:
; ; ; ; ; ; ;  [1]
  1. Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Dayton, OH 45433 (United States)
Publication Date:
OSTI Identifier:
22162739
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 102; Journal Issue: 6; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM COMPOUNDS; ANTIMONY; ANTIMONY COMPOUNDS; ARSENIC COMPOUNDS; ATOMIC FORCE MICROSCOPY; CRYSTAL GROWTH; CRYSTALLIZATION; CRYSTALS; GALLIUM ANTIMONIDES; LAYERS; MOLECULAR BEAM EPITAXY; NANOSTRUCTURES; ORIENTATION; POLARIZATION; SEMICONDUCTOR MATERIALS; SURFACES; TRANSMISSION; TRANSMISSION ELECTRON MICROSCOPY