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Updated: Jun 26, 2026

Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Imaging single ZnO vertical nanowire laser cavities using UV-laser scanning confocal microscopy
Daniel J Gargas1, Maria Eugenia Toimil-Molares, Peidong Yang
1Department of Chemistry, University of California, Berkeley, California 94720, USA.
Abstract:
We report the fabrication and optical characterization of individual ZnO vertical nanowire laser cavities. Dilute nanowire arrays with interwire spacing >10 microm were produced by a modified chemical vapor transport (CVT) method yielding an ideal platform for single nanowire imaging and spectroscopy. Lasing characteristics of a single vertical nanowire are presented, as well as high-resolution photoluminescence imaging by UV-laser scanning confocal microscopy. In addition, three-dimensional (3D) mapping of the photoluminescence emission performed in both planar and vertical dimensions demonstrates height-selective imaging useful for vertical nanowires and heteronanostructures emerging in the field of optoelectronics and nanophotonics.

