24 April 2018 Femtosecond laser trapping, assembling, and ejection dynamics of dielectric nanoparticles in solution
Author Affiliations +
Proceedings Volume 10712, Optical Manipulation Conference; 1071202 (2018) https://doi.org/10.1117/12.2318416
Event: SPIE Structured Light, 2018, Yokohama, Japan
Abstract
We elucidated femtosecond laser trapping dynamics of Rayleigh particles by modifying the surface property of nanoparticles and changing the viscosity. Through bright field, dark field and backscattering images, we monitored ejection behavior of nanoparticles which takes place in the direction perpendicular to laser polarization and switched from one side to the other. For very hydrophobic nanoparticle, we succeeded in observing directly a transient assembly and confirmed that its formation is responsible to the directional ejection. Also the trapping dynamics was compared for femtosecond and continuous-wave lasers in highly viscous solvent, which gives a new viewpoint for understanding femtosecond laser trapping mechanism.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hiroshi Masuhara, Jim Jui-Kai Chen, Wei-Yi Chiang, Anwar Usman, Teruki Sugiyama, Johan Hofkens, "Femtosecond laser trapping, assembling, and ejection dynamics of dielectric nanoparticles in solution ", Proc. SPIE 10712, Optical Manipulation Conference, 1071202 (24 April 2018); doi: 10.1117/12.2318416; https://doi.org/10.1117/12.2318416
PROCEEDINGS
6 PAGES


SHARE
Back to Top