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Driving innovations in manufacturing: Open Access research from DMEM

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Design, Manufacture & Engineering Management (DMEM).

Centred on the vision of 'Delivering Total Engineering', DMEM is a centre for excellence in the processes, systems and technologies needed to support and enable engineering from concept to remanufacture. From user-centred design to sustainable design, from manufacturing operations to remanufacturing, from advanced materials research to systems engineering.

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Buried dielectric mirrors for the lateral overgrowth of GaN-based microcavities

Martin, R.W. and Edwards, P.R. and Pecharroman-Gallego, R. and Trager-Cowan, C. and Kim, T. and Kim, H.S. and Kim, K.S. and Watson, I.M. and Dawson, M.D. (2001) Buried dielectric mirrors for the lateral overgrowth of GaN-based microcavities. Physica Status Solidi A, 183 (1). pp. 145-149. ISSN 1862-6300

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Abstract

The use of lateral overgrowth techniques to develop III-nitride microcavities with both mirrors fabricated from very highly reflecting dielectric multilayers (e.g. SiO2/ZrO2) will be discussed. Multilayer mirror stacks with broad high reflectivity stop-bands and peak reflectivities in excess of 99% at wavelengths near the emission energies of typical InGaN/GaN quantum well structures, have been patterned in order to be compatible with subsequent lateral epitaxial overgrowth or pendeoepitaxy. Improvements in material quality resulting from lateral overgrowth above single layer masks are demonstrated using spatially resolved photoluminescence and cathodoluminescence imaging.