@inproceedings{b1bb20498c364aedb860f9749f5c97f6,
title = "Strong Sub-Bandgap Absorption in GaSb/ErSb Nanocomposites Attributed to Plasma Resonances of Semimetallic ErSb Nanoparticles",
abstract = "We report experimental evidence for strong surface plasma resonances on semimetallic ErSb nanoparticles grown epitaxially in semiconducting GaSb by molecular beam epitaxy. The infrared transmission spectra of ErSb/GaSb superlattices grown by molecular beam epitaxy showed a pronounced attenuation peak below the band gap of GaSb, not observed in a GaSb epitaxial control layer containing no ErSb. We attribute the attenuation peak to a surface plasmon resonance on the ErSb particles. The position of this peak shifts to longer wavelengths with increased ErSb deposition, from 2.4 μm for the smallest deposition to 3.8 μm for the largest deposition. In addition, the attenuation strength increases with the total amount of ErSb contained in the sample. The strongest effective attenuation coefficient was measured to be 1.4×10 4 cm -1, which is nearly equal to the cross bandgap absorption of the bulk GaSb at 1 μm.",
author = "Hanson, \{M. P.\} and Driscoll, \{D. C.\} and Brown, \{E. R.\} and Gossard, \{A. C.\}",
year = "2005",
month = jun,
day = "30",
doi = "10.1063/1.1994370",
language = "English",
isbn = "0735402574",
series = "AIP Conference Proceedings",
pages = "845--846",
booktitle = "Physics of Semiconductors",
note = "PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 ; Conference date: 26-07-2004 Through 30-07-2004",
}