Room-Temperature Ultraviolet Lasing from Zinc Oxide Microtubes
- 8 October 2003
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 42 (Part 2, No) , L1229-L1231
- https://doi.org/10.1143/jjap.42.l1229
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.Keywords
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