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Refractive index dispersion deduced from lasing modes in ZnO microtetrapods

Appl. Phys. Lett. 95, 171101 (2009); doi:10.1063/1.3254222

Published 26 October 2009

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V. V. Ursaki,1 V. V. Zalamai,1 I. M. Tiginyanu,2 A. Burlacu,2 E. V. Rusu,2 and C. Klingshirn3
1Institute of Applied Physics, Academy of Sciences of Moldova, MD-2028 Chisinau, Moldova
2Institute of Electronic Engineering and Industrial Technologies, Academy of Sciences of Moldova, MD-2028 Chisinau, Moldova
3Institut für Angewandte Physik, Universität Karlsruhe (TH), Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany

High optical quality, well end leg faceted ZnO microtetrapods sustaining lasing modes with quality factors of 2500–3000 have been grown by carbothermal chemical vapor deposition. It is shown that lasing is due to longitudinal Fabry–Pérot modes in individual tetrapod legs and the analysis of the wavelength position of these modes is an effective instrument for the investigation of temperature dependence of the refractive index dispersion in the region of exciton resonances. The dispersion of the ZnO refractive index is experimentally determined in the temperature interval from 10 to 300 K and is compared with available literature data. ©2009 American Institute of Physics
History: Received 16 August 2009; accepted 5 October 2009; published 26 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/171101/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.55.Px
    Semiconductor lasers; laser diodes
  • 42.60.By
    Design of specific laser systems
  • 42.55.Sa
    Microcavity and microdisk lasers
  • 78.20.Ci
    Optical constants
  • YEAR: 2009

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ISSN:
0003-6951 (print)   1077-3118 (online)
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