Abstract

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 1.55μm wavelength from a fiber tip. A 206μm diameter oil drop was delivered forward and backward by changing the laser beam at a power of 28.540mW. In addition, the delivery has been further demonstrated with a cluster of carbon and red blood cells at the laser powers of 14 and 20mW, respectively.

© 2011 Optical Society of America

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