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- Title
Optical characteristics of highly ordered gallium oxide nano-islands on GaAs.
- Authors
Zhou, X. L.; Wei, Q. M.; Wang, L. M.; Sun, K.
- Abstract
A periodic array of Ga oxide islands was obtained by annealing the highly ordered Ga nano-droplets on GaAs surface at 400°C under an oxygen atmosphere for 7 hours. These Ga oxides are a mixture of α-Ga2O3 and β-Ga2O3 confirmed by Raman spectroscopy study. Enhanced optical transmission of GaAs with such ordered Ga oxide nano-islands was obtained. Both dielectric and dimensional confinement effects were considered in analysis of the electromagnetic characteristics of the nanostructured materials. Finite-difference time-domain method was used to numerically study the light transmission through the patterned Ga oxide on GaAs surface. Based on the calculated results, the light transmission enhancement is attributed to the formation of the ordered nano Ga oxides.
- Subjects
GALLIUM; GALLIUM compounds; RAMAN spectroscopy; ELECTROMAGNETISM; DIELECTRICS
- Publication
Applied Physics B: Lasers & Optics, 2009, Vol 96, Issue 1, p61
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-008-3360-4