Mapping two-dimension trapping potential of nanoparticles in an optical trap

Jinxin Fu; Yi Hu; Liangcheng Zhou; Min Yao Lim; Melissa Goleb; Qiwen Zhan; H. Daniel Ou-Yang

doi:10.1117/12.2027057

7 June 2013 Mapping two-dimension trapping potential of nanoparticles in an optical trap

Jinxin Fu, Yi Hu, Liangcheng Zhou, Min Yao Lim, Melissa Goleb, Qiwen Zhan, H. Daniel Ou-Yang

Proceedings Volume 8883, ICPS 2013: International Conference on Photonics Solutions; 88830J (2013) https://doi.org/10.1117/12.2027057
Event: International Conference on Photonics Solutions 2013, 2013, Pattaya City, Thailand

Abstract

Combining confocal microscopy and optical tweezers, we map out the spatial distribution of the particle concentrations of quantum dots, fluorescent HIV pseudo virus particles and polystyrene nanospheres in an optical trap. By analyzing the Boltzmann distribution of local particle concentrations, we obtain the two-dimension single particle trapping potential profile at the center of the optical trap in the direction perpendicular to the beam propagation. We compare the trapping potential energies of pseudo HIV vesicles and same-sized polystyrene spheres. We also compare the trapping potential energy of polystyrene spheres of a focused Gaussian beam and two modes of cylindrical vector beams.

Citation Download Citation

Jinxin Fu, Yi Hu, Liangcheng Zhou, Min Yao Lim, Melissa Goleb, Qiwen Zhan, and H. Daniel Ou-Yang "Mapping two-dimension trapping potential of nanoparticles in an optical trap ", Proc. SPIE 8883, ICPS 2013: International Conference on Photonics Solutions, 88830J (7 June 2013); https://doi.org/10.1117/12.2027057

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