𝔖 Bobbio Scriptorium
✦   LIBER   ✦

ZnO Nanoribbon Microcavity Lasers

✍ Scribed by H. Yan; J. Johnson; M. Law; R. He; K. Knutsen; J.R. McKinney; J. Pham; R. Saykally; P. Yang

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
174 KB
Volume
15
Category
Article
ISSN
0935-9648

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✦ Synopsis

ZnO nanoribbons with pseudo‐rectangular cross‐sections (see Figure) are demonstarted to be excellent microcavities with a high quality factor (βˆΌβ€‰3000). The lasing threshold is shown to be inversely proportional to the length of the ribbon for pumping intensities lower than the saturation region. Analysis of the emission spectra points to the possibility of the existence of both pure axial modes and β€œbow‐tie” cavity modes.

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## Abstract We present a scanning tunneling microscopy and spectroscopy (STM–STS) investigation of the effects of ultra high vacuum annealing and oxygen exposure onto ZnO nanoribbons synthesised by chemical vapour deposition. STM imaging revealed a width to height ratio for the nanoribbons between