Room-temperature ultraviolet lasing from zinc oxide microtubes

被引：86
|
作者：
Sun, XW
Yu, SF
Xu, CX
Yuen, C
Chen, BJ
Li, S
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Sch Mat Engn, Singapore 639798, Singapore
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2003年 / 42卷 / 10B期
关键词：
ZnO; microtube; UV lasing;
D O I：
10.1143/JJAP.42.L1229
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 mum to 20 mum and 10 mum to a few hundred mum 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.
引用
收藏
页码：L1229 / L1231
页数：3
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