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Assessment of waveguiding properties of gallium oxide nanostructures by angle resolved cathodoluminescence in a scanning electron microscope

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Nogales Díaz, Emilio and Méndez Martín, Bianchi and Piqueras de Noriega, Javier (2011) Assessment of waveguiding properties of gallium oxide nanostructures by angle resolved cathodoluminescence in a scanning electron microscope. Ultramicroscopy, 111 (8). pp. 1037-1042. ISSN 0304-3991

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Official URL: http://www.sciencedirect.com/science/article/pii/S0304399111000891


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Abstract

Cathodoluminescence (CL) of Ga2O3 nanowires and planar microstructures has been studied in a scanning electron microscope, as a function of the orientation angle of the structures relative to the position of the light detection system in the microscope chamber. CL contrast shows a marked dependence on the detection angle due to the waveguiding behaviour of the structures. The angle resolved cathodoluminescence (ARCL) measurements enable to evaluate the optical losses of guided blue-ultraviolet light in nanowires with diameters in the sub-wavelength range, deposited on graphite tape or silicon. In planar, branched feather-like microstructures, ARCL images demonstrate the directional-dependant light guiding behaviour of the nano-branches. (


Item Type:Article
Additional Information:

© 2011 ElsevierB.V.
This work has been supported by MEC (projects MAT2006- 01259, MAT2009-07882 and Consolider Ingenio CSD 2009-00013) and BSCH-UCM (Group 910146).

Uncontrolled Keywords:Beta-Ga_2O_3 Nanowires, Ga_2O_3 Films
Subjects:Sciences > Physics > Materials
ID Code:24222
Deposited On:15 Jan 2014 17:38
Last Modified:13 Feb 2018 13:46

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