All-optical manipulation of micrometer-sized metallic particles
Optical traps use focused laser beams to generate forces on targeted objects ranging in size from nanometers to micrometers. However, for their high coefficients of scattering and absorption, micrometer-sized metallic particles were deemed non-trappable in three dimensions using a single beam. This barrier is now removed. We demonstrate, both in theory and experiment, three-dimensional (3D) dynamic all-optical manipulations of micrometer-sized gold particles under high focusing conditions. The force of gravity is found to balance the positive axial optical force exerted on particles in an inverted optical tweezers system to form two trapping positions along the vertical direction. Both theoretical and experimental results confirm that stable 3D manipulations are achievable for these particles regardless of beam polarization and wavelength. The present work opens up new opportunities for a variety of in-depth research requiring metallic particles.
基金项目：National Natural Science Foundation of China (NSFC)10.13039/501100001809 (91750205, 61377052, 61422506, 61427819, 61605117); National Key Basic Research Program of China (973) (2015CB352004); National Key Research and Development Program of China (2016YFC0102401); Leading Talents of Guangdong Province Program (00201505); Natural Science Foundation of Guangdong Province10.13039/501100003453 (2016A030312010, 2016A030310063); Excellent Young Teacher Program of Guangdong Province (YQ2014151).
Xiujie Dou：Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
Yanmeng Dai：Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
Xianyou Wang：Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
Changjun Min：Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
Xiaocong Yuan：Nanophotonics Research Center, Shenzhen University, Shenzhen 518060, China
【1】A. Ashkin, “Acceleration and trapping of particles by radiation pressure,” Phys. Rev. Lett. 24 , 156–159 (1970).
【2】A. Ashkin, J. M. Dziedzic, J. E. Bjorkholm, and S. Chu, “Observation of a single-beam gradient force optical trap for dielectric particles,” Opt. Lett. 11 , 288–290 (1986).
【3】S. Chu, J. E. Bjorkholm, A. Ashkin, and A. Cable, “Experimental observation of optically trapped atoms,” Phys. Rev. Lett. 57 , 314–317 (1986).
【4】J. R. Moffitt, Y. R. Chemla, S. B. Smith, and C. Bustamante, “Recent advances in optical tweezers,” Annu. Rev. Biochem. 77 , 205–228 (2008).
【5】M. D. Wang, H. Yin, R. Landick, J. Gelles, and S. M. Block, “Stretching DNA with optical tweezers,” Biophys. J. 72 , 1335–1346 (1997).
【6】A. Ivinskaya, M. I. Petrov, A. A. Bogdanov, I. Shishkin, P. Ginzburg, and A. S. Shalin, “Plasmon-assisted optical trapping and anti-trapping,” Light Sci. Appl. 6 , e16258 (2017).
【7】J. Lu, H. Yang, L. Zhou, Y. Yang, S. Luo, Q. Li, and M. Qiu, “Light-induced pulling and pushing by the synergic effect of optical force and photophoretic force,” Phys. Rev. Lett. 118 , 043601 (2017).
【8】Q. Zhan, “Radiation forces on a dielectric sphere produced by highly focused cylindrical vector beams,” J. Opt. A 5 , 229–232 (2003).
【9】H. Lu, X. T. Gan, D. Mao, and J. Zhao, “Graphene-supported manipulation of surface plasmon polaritons in metallic nanowaveguides,” Photon. Res. 5 , 162 (2017).
【10】J. Liu, and Z. Li, “Light-driven crystallization of polystyrene micro-spheres,” Photon. Res. 5 , 201 (2017).
【11】H. Kawauchi, K. Yonezawa, Y. Kozawa, and S. Sato, “Calculation of optical trapping forces on a dielectric sphere in the ray optics regime produced by a radially polarized laser beam,” Opt. Lett. 32 , 1839–1841 (2007).
【12】Y. Zhang, J. Shen, Z. Xie, X. Dou, C. Min, T. Lei, J. Liu, S. Zhu, and X. Yuan, “Dynamic plasmonic nano-traps for single molecule surface enhanced Raman scattering,” Nanoscale, 9, 10694–10700 (2017).
【13】V. Subramanian, E. E. Wolf, and P. V. Kamat, “Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration,” J. Am. Chem. Soc. 126 , 4943–4950 (2004).
【14】K. Peng, J. Hu, Y. Yan, Y. Wu, H. Fang, Y. Xu, S. T. Lee, and J. Zhu, “Fabrication of single‐crystalline silicon nanowires by scratching a silicon surface with catalytic metal particles,” Adv. Funct. Mater. 16 , 387–394 (2006).
【15】P. K. Jain, X. Huang, I. H. El-Sayed, and M. A. Elsayed, “Noble metals on the nanoscale: optical and photothermal properties and some applications in imaging, sensing, biology, and medicine,” Acc. Chem. Res. 41 , 1578–1586 (2008).
【16】Q. Zhan, “Trapping metallic Rayleigh particles with radial polarization,” Opt. Express 12 , 3377–3382 (2004).
【17】P. M. Hansen, V. K. Bhatia, N. Harrit, and L. Oddershede, “Expanding the optical trapping range of gold nanoparticles,” Nano Lett. 5 , 1937–1942 (2005).
【18】T. Nieminen, N. Heckenberg, and H. Rubinsztein-Dunlop, “Forces in optical tweezers with radially and azimuthally polarized trapping beams,” Opt. Lett. 33 , 122–124 (2008).
【19】L. Huang, H. Guo, J. Li, L. Ling, B. Feng, and Z. Li, “Optical trapping of gold nanoparticles by cylindrical vector beam,” Opt. Lett. 37 , 1694–1696 (2012).
【20】L. Bosanac, T. Aabo, P. M. Bendix, and L. B. Oddershede, “Efficient optical trapping and visualization of silver nanoparticles,” Nano Lett. 8 , 1486–1491 (2008).
【21】F. Hajizadeh, and S. N. Reihani, “Optimized optical trapping of gold nanoparticles,” Opt. Express 18 , 551–559 (2010).
【22】K. Svoboda, and S. M. Block, “Optical trapping of metallic Rayleigh particles,” Opt. Lett. 19 , 930–932 (1994).
【23】C. Min, Z. Shen, J. Shen, Y. Zhang, H. Fang, G. Yuan, L. Du, S. Zhu, T. Lei, and X. Yuan, “Focused plasmonic trapping of metallic particles,” Nat. Commun. 4 , 2891 (2013).
【24】K. Sasaki, M. Koshioka, H. Misawa, and N. Kitamura, “Optical trapping of a metal particle and a water droplet by a scanning laser beam,” Appl. Phys. Lett. 60 , 807–809 (1992).
【25】S. Sato, Y. Harada, and Y. Waseda, “Optical trapping of microscopic metal particles,” Opt. Lett. 19 , 1807–1809 (1994).
【26】M. Gu, and D. Morrish, “Three-dimensional trapping of Mie metallic particles by the use of obstructed laser beams,” J. Appl. Phys. 91 , 1606–1612 (2002).
【27】P. Ke, and M. Gu, “Characterization of trapping force on metallic Mie particles,” Appl. Opt. 38 , 160–167 (1999).
【28】A. T. O’Neil, and M. Padgett, “Three-dimensional optical confinement of micron-sized metal particles and the decoupling of the spin and orbital angular momentum within an optical spanner,” Opt. Commun. 185 , 139–143 (2000).
【29】M. Gu, and P. Ke, “Depolarization of evanescent waves scattered by laser-trapped gold particles: effect of particle size,” J. Appl. Phys. 88 , 5415–5420 (2000).
【30】Y. Zhang, W. Shi, Z. Shen, Z. Man, C. Min, J. Shen, S. Zhu, H. P. Urbach, and X. Yuan, “A plasmonic spanner for metal particle manipulation,” Sci. Rep. 5 , 15446 (2015).
【31】J. Qin, X. L. Wang, D. Jia, J. Chen, Y. Fan, J. Ding, and H. Wang, “FDTD approach to optical forces of tightly focused vector beams on metal particles,” Opt. Express 17 , 8407–8416 (2009).
【32】W. Rechberger, A. Hohenau, A. Leitner, J. R. Krenn, B. Lamprecht, and F. R. Aussenegg, “Optical properties of two interacting gold nanoparticles,” Opt. Commun. 220 , 137–141 (2003).
【33】P. F. Liao, and M. B. Stern, “Surface-enhanced Raman scattering on gold and aluminum particle arrays,” Opt. Lett. 7 , 483–485 (1982).
【34】T. V. W. Janssens, A. Carlsson, A. Puig-Molina, and B. S. Clausen, “Relation between nanoscale Au particle structure and activity for CO oxidation on supported gold catalysts,” J. Catal. 240 , 108–113 (2006).
Yuquan Zhang, Xiujie Dou, Yanmeng Dai, Xianyou Wang, Changjun Min, and Xiaocong Yuan, "All-optical manipulation of micrometer-sized metallic particles," Photonics Research 6(2), 66 (2018)