Cavity modes of tapered ZnO nanowires

Details Cavity modes of tapered ZnO nanowires Cavity modes of tapered ZnO nanowires

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12h3052x&link_type=abstract

New Journal of Physics, Volume 12, Issue 8, pp. 083052 (2010).

Physics

1

Scientific paper

We report on a cavity mode mapping of ZnO tapered nanowires using micro-photoluminescence spectroscopy at room temperature. Both the Fabry-Perot (FP) and the whispering gallery (WG) modes are identified in a single wire. The emission spectra from single nanowires comprise regular Lorentzian peaks, which arise from the FP interference between the ends of the nanowire. The overall intensity along the tapered wire varies periodically. This variation is ascribed to WG mode resonances across the nanowire. The results agree well with the theoretical calculations using the finite-difference time-domain method.

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