通过光纤尖端激光束诱导的对流实现微观物体的光热传输。
Photothermal delivery of microscopic objects via convection flows induced by laser beam from fiber tip.
作者信息
Liao Dongwei, Yu Huaqing, Zhang Yao, Li Baojun
机构信息
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
出版信息
Appl Opt. 2011 Jul 10;50(20):3711-6. doi: 10.1364/AO.50.003711.
We report a photothermal delivery of microscopic objects based on convection flows at the surface of water. The convection flows were induced by photothermal effect through a laser beam of 1.55 μm wavelength from a fiber tip. A 206 μm diameter oil drop was delivered forward and backward by changing the laser beam at a power of 28.5-40 mW. In addition, the delivery has been further demonstrated with a cluster of carbon and red blood cells at the laser powers of 14 and 20 mW, respectively.
我们报道了基于水表面对流的微观物体光热传输。对流由来自光纤尖端的1.55μm波长激光束的光热效应诱导产生。通过改变功率为28.5 - 40 mW的激光束，直径为206μm的油滴可前后传输。此外，分别在14 mW和20 mW的激光功率下，用碳簇和红细胞进一步证明了这种传输。
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