Lasing droplets in a microfabricated channel
Lasing droplets in a microfabricated channel
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DOI：
10.1364/ol.32.002529
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发表时间：
2007-09-01
期刊：
影响因子：
3.6
通讯作者：
Kennedy, Ian M.
中科院分区：
文献类型：
--
作者：
Tanyeri, Melikhan;Perron, Richard;Kennedy, Ian M.
在微通道中观察到喷射到折射率较低的液体介质中的球形微滴发出的激光。已经利用了结合液滴产生和激发/检测的微制造装置。首先检测含有荧光染料的直径为50 μ m的液滴，然后在T型接头处产生后通过多模光纤激发。图像显示了液滴边缘周围强烈的激光发射。来自液滴的光谱表现出相对于来自染料的本体荧光发射红移的形态依赖性共振。共振峰强度与泵浦光功率的关系是非线性的。(c)2007年，美国光学学会。
Lasing from spherical microdroplets ejected into a liquid medium with a lower refractive index is observed in a microchannel. A microfabricated device that combines droplet production and excitation/detection has been utilized. Droplets of 50 mu m diameter containing a fluorescent dye were first detected and then excited through multimode fibers after their production at a T-junction. Images show intense lasing emission around the droplet rim. Spectra from the droplets exhibit morphology-dependent resonances that are red-shifted relative to the bulk fluorescence emission from the dyes. The dependence of resonant peak intensities on the pump beam power is nonlinear. (c) 2007 Optical Society of America.