Optical trapping gold nanoparticles by a pulse laser

XiaoYu Liu; Feng Wang

doi:10.1117/12.868288

8 November 2010 Optical trapping gold nanoparticles by a pulse laser

XiaoYu Liu, Feng Wang

Proceedings Volume 7845, Optics in Health Care and Biomedical Optics IV; 78451U (2010) https://doi.org/10.1117/12.868288
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Gold nanoparticles are widely employed in nanomaterials, nanobiotechnology and health care, but generally they are considered difficult to trap stably. Compared with the continuous laser which is popular to the optical trapping, pulse laser has a relatively larger power in its work pulse, which is useful for trap particles. So this paper comprehensively analyzes the forces (the radiation forces, the gravitation, and the Brownian motion) on the gold nanoparticles in the optical tweezers formed by a pulse laser, through building up a mathematical model. Finally gets the dependence relation between the characteristics of the pulse laser and that of the gold nanoparticles.

Citation Download Citation

XiaoYu Liu and Feng Wang "Optical trapping gold nanoparticles by a pulse laser", Proc. SPIE 7845, Optics in Health Care and Biomedical Optics IV, 78451U (8 November 2010); https://doi.org/10.1117/12.868288

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