Whispering gallery mode lasing in zinc oxide microwires

被引：194

作者：

Czekalla, Christian ^{[1
]}

Sturm, Chris ^{[1
]}

Schmidt-Grund, Ruediger ^{[1
]}

Cao, Bingqiang ^{[1
]}

Lorenz, Michael ^{[1
]}

Grundmann, Marius ^{[1
]}

机构：

[1] Univ Leipzig, Fac Phys & Geowissensch, Inst Expt Phys 2, D-04103 Leipzig, Germany

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 24期

关键词：

D O I：

10.1063/1.2946660

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Lasing on whispering gallery modes was excited by optical pumping in single zinc oxide microwires fabricated by a simple carbothermal evaporation process. The experimentally observed laser modes agree precisely with the predicted energetic positions obtained from a plane wave model. Systematic diameter dependent measurements have been carried out for diameters of the microwires between 3 and 12 mu m. The investigated microlasers are found to have a lasing threshold of about 170 kW/cm(2) at 10 K.

引用

页数：3

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