title: Photothermal delivery of microscopic objects via convection flows induced by laser beam from fiber tip.
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 1.55 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.
authors: State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors: Dongwei
authors: D
authors: Liao
authors: Huaqing
authors: H
authors: Yu
authors: Yao
authors: Y
authors: Zhang
authors: Baojun
authors: B
authors: Li
mesh_terms: D001695:Biology / Q000379:methods; D002244:Carbon / Q000737:chemistry; D018481:Convection; D003952:Diagnostic Imaging / Q000379:methods; D004867:Equipment Design; D004912:Erythrocytes / Q000166:cytology*; D006358:Hot Temperature; D006801:Humans; D007834:Lasers; D008422:Materials Testing; D008853:Microscopy / Q000379:methods*; D009821:Oils / Q000737:chemistry; D052898:Optical Tweezers; D055095:Optics and Photonics; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D009821:Oils; D014867:Water; D002244:Carbon