期刊
NANO LETTERS
卷 15, 期 8, 页码 5302-5306出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01665
关键词
MoS2; lasing; photoluminescence; gain; whispering gallery mode
类别
资金
- Natural Sciences and Engineering Research Council of Canada
The discovery of direct bandgap semiconducting two-dimensional (2D) transition metal dichalcogenides (TMDCs) has opened a new era in flexible optoelectronic devices. Critical to this development is the realization of a semiconductor laser using the emerging 2D TMDCs. Here, by embedding 2D MoS2 at the interface between a free-standing microdisk and microsphere, we have demonstrated, for the first time, room-temperature lasing from 2D TMDCs. The devices exhibit multiple lasing peaks in the wavelength range of similar to 600 to 800 nm. The threshold is measured to be similar to 5 mu W under continuous wave operation at room temperature. No saturation in the output power is measured for pump powers more than 2 orders of magnitude larger than the threshold. The superior performance is attributed to the large gain of 2D TMDCs and the strong coupling between the 2D MoS2 gain medium and optical modes in the unique optical cavity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据