Title
Holographic Plasmonic Nanotweezers for Dynamic Trapping and Manipulation
Document Type
Article
Abstract
We demonstrate dynamic trapping and manipulation of nanoparticles with plasmonic holograms. By tailoring the illumination pattern of an incident light beam with a computer-controlled spatial light modulator, constructive and destructive interference of plasmon waves create a focused hotspot that can be moved across a surface. Specifically, a computer-generated hologram illuminating the perimeter of a silver Bull's Eye nanostructure generates surface plasmons that propagate toward the center. Shifting the phase of the plasmon waves as a function of space gives complete control over the location of the focus. We show that 200 nm diameter nanoparticles trapped in this focus can be moved in arbitrary patterns. This allows, for example, circular motion with linearly polarized light. These results show the versatility of holographically generated surface plasmon waves for advanced trapping and manipulation of nanoparticles.
Department(s)
Physics and Engineering
Publication Title
Nano Letters
Volume
17
Issue
12
First Page
7920
Last Page
7925
Publication Date
12-13-2017
DOI
10.1021/acs.nanolett.7b04289
ISSN
15306984
E-ISSN
15306992
PubMed ID
29144755
Recommended Citation
Huft, Preston R.; Kolbow, Joshua D.; Thweatt, Jonathan T.; and Lindquist, Nathan C., "Holographic Plasmonic Nanotweezers for Dynamic Trapping and Manipulation" (2017). Physics and Engineering Faculty Publications. 13.
https://spark.bethel.edu/physics-faculty/13