Room-Temperature Ultraviolet Lasing from Zinc Oxide Microtubes

X. W. Sun, Siu Fung Yu, C. X. Xu, C. Yuen, B. J. Chen, S. Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

96 Citations (Scopus)

Abstract

Prismatic zinc oxide microtubes have been fabricated by vapor transport. Room-temperature ultraviolet lasing action has been demonstrated in these microtube arrays. The ZnO microtubes, mainly appearing in tapped bell-mouthed shape, form natural laser cavities along the length direction. The hexagon diagonal and length of the microtube vary from 1 μm to 20 μm and 10 μm to a few hundred μm respectively. Under 355 nm optical excitation, lasing action is observed at room-temperature around 393 nm. Multi-longitudinal modes are also observed with significantly narrowed emission linewidth.
Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume42
Issue number10 B
Publication statusPublished - 15 Oct 2003
Externally publishedYes

Keywords

  • Microtube
  • UV lasing
  • ZnO

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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