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  High quality factor whispering gallery modes from self-assembled hexagonal GaN rods grown by metal-organic vapor phase epitaxy

Tessarek, C., Sarau, G., Kiometzis, M., & Christiansen, S. (2013). High quality factor whispering gallery modes from self-assembled hexagonal GaN rods grown by metal-organic vapor phase epitaxy. OPTICS EXPRESS, 21(3), 2733-2740. doi:10.1364/OE.21.002733.

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 Creators:
Tessarek, C.1, Author              
Sarau, G.1, Author              
Kiometzis, M.2, Author
Christiansen, S.1, 3, Author              
Affiliations:
1Micro- & Nanostructuring, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364725              
2external, ou_persistent22              
3Christiansen Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364716              

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Free keywords: OPTICAL-PROPERTIES; MICROCAVITIES; MICRODISKS; LASERS; LAYERSOptics;
 Abstract: Self-assembled GaN rods were grown on sapphire by metalorganic vapor phase epitaxy using a simple two-step method that relies first on a nitridation step followed by GaN epitaxy. The mask-free rods formed without any additional catalyst. Most of the vertically aligned rods exhibit a regular hexagonal shape with sharp edges and smooth sidewall facets. Cathodo-and microphotoluminescence investigations were carried out on single GaN rods. Whispering gallery modes with quality factors greater than 4000 were measured demonstrating the high morphological and optical quality of the self-assembled GaN rods. (C) 2012 Optical Society of America

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Language(s): eng - English
 Dates: 2013
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000315991400020
DOI: 10.1364/OE.21.002733
 Degree: -

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Title: OPTICS EXPRESS
Source Genre: Journal
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Publ. Info: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA : OPTICAL SOC AMER
Pages: - Volume / Issue: 21 (3) Sequence Number: - Start / End Page: 2733 - 2740 Identifier: ISSN: 1094-4087