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Single quantum dot (QD) imaging of fluid flow near surfaces |
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| Authors: | Shahram Pouya Manoochehr Koochesfahani Preston Snee Moungi Bawendi Daniel Nocera |
| Institution: | (1) Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824, USA;(2) Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA |
| Abstract: | We introduce the use of quantum dot (QD) nanoparticles for near-surface velocimetry and provide preliminary data to demonstrate its feasibility. Evanescent wave illumination is used to image the motion of water-soluble (CdSe)ZnS QDs with a core size of 6 nm within a region of order 100 nm of a surface . Results are presented for the two in-plane components of the velocity field. |
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