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Proceedings Paper

Probing light-matter interactions at the nanoscale with a deterministically positioned single quantum dot
Author(s): Chad Ropp; Zachary Cummins; Roland Probst; Sijia Qin; John T. Fourkas; Benjamin Shapiro; Edo Waks
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Paper Abstract

Single QDs are desirable probe objects for studying near-field optical interactions with photonic structures, however, they are often very difficult to manipulate due to their small sizes. Here, we describe a technique for the manipulation of individual colloidal CdSe/ZnS quantum dots (QDs) with nanometer accuracy along a two dimensional surface. A microfluidic approach is described which provides two-dimensional positioning of single QDs with nanoscale accuracy. In addition, we discuss the engineering of a water-based fluid that provides localization of QDs to within 100 nm of the channel surface. Through a combination of surface localization and in plane manipulation, a setup is described where single QDs can be utilized as single emitter probes for studying local light-matter interactions in a planar geometry.

Paper Details

Date Published: 29 March 2013
PDF: 7 pages
Proc. SPIE 8634, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling X, 86340H (29 March 2013); doi: 10.1117/12.2004820
Show Author Affiliations
Chad Ropp, Univ. of Maryland, College Park (United States)
Zachary Cummins, Univ. of Maryland, College Park (United States)
Roland Probst, Univ. of Maryland, College Park (United States)
Sijia Qin, Univ. of Maryland, College Park (United States)
John T. Fourkas, Univ. of Maryland, College Park (United States)
Benjamin Shapiro, Univ. of Maryland, College Park (United States)
Edo Waks, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 8634:
Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling X
Kurt G. Eyink; Diana L. Huffaker; Frank Szmulowicz, Editor(s)

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