Liao Dongwei, Yu Huaqing, Zhang Yao, Li Baojun
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
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。
