[9p-M116-1~13] 3.1 Basic optics and frontier of optics

▲ [9p-M116-6] Correlated Dynamic Arrangement of Gold Nanoparticles in
Laser Trapping at Glass/Solution Interface

〇(M2)Chih-Hao Huang¹, Boris Louis², Rafael Camacho², Tetsuhiro Kudo¹, Johan Hofkens², Hiroshi Masuhara^1,3 (1.Department of Applied Chemistry, College of Science, National Chiao Tung Univ. Taiwan, 2.Department of Chemistry, KU Leuven, Belgium, 3.Center for Emergent Functional Matter Science, National Chiao Tung Univ. Taiwan)

Keywords:Laser trapping, Gold nanoparticles, Particle tracking

We are extending a systematic study on “Optically Evolved Assembly Formation in Laser Trapping” where optical potential expands from the focus to the outside of a few ten micrometer through scattering and propagation of the trapping laser.
Here we report single-particle level laser trapping experiment to understand how gold NPs are arranged step-by-step outside the laser focus by controlling the precise number of particles. Single particle tracking analysis enables us to monitor the growing process of the assembly and to consider interparticle interaction.